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For a calm, healthy adult dog, a useful starting point is a rectal temperature of 100–102.5°F (37.7–39.2°C), a resting heart rate of roughly 70–120 beats per minute, and a calm or sleeping respiratory rate of about 15–30 breaths per minute.
These are reference ranges—not pass-or-fail diagnostic limits. Your dog’s normal baseline, age, size, measurement technique, recent activity, and symptoms matter. Labored breathing, abnormal gum color, collapse, severe weakness, or suspected heatstroke requires urgent veterinary care even if a number appears normal.
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Normal Temperature, Heart, and Respiratory Rates in Dogs
Quick reference: normal dog vital signs
Veterinary teams often record a dog’s TPR: Temperature, Pulse, and Respiration. The table below is intended for calm, generally healthy adult dogs—not newborn puppies, dogs immediately after exercise, or patients in respiratory distress.
| Vital sign | Practical adult-dog reference | How to measure | When to be concerned |
|---|---|---|---|
| Temperature | About 100–102.5°F (37.7–39.2°C); rectal readings are the usual comparison | Use a digital thermometer carefully, preferably rectally | Repeat a mildly high reading after rest. Persistent readings above about 103°F deserve veterinary advice. Above 104°F or below 99°F is an emergency-level concern, particularly with illness or weakness. |
| Heart rate | Broadly about 70–120 beats per minute; small dogs and puppies often run faster than large adult dogs | Count chest beats or the femoral pulse while the dog is calm | A persistent extreme, irregular rhythm, weak or absent pulse, collapse, pale or blue gums, or breathing difficulty is more important than a number alone. |
| Respiratory rate | About 15–30 breaths per minute while calm or asleep | Count complete chest movements when the dog is not panting | A sustained sleeping/resting rate above the dog’s baseline or around 30 or more should prompt contact with your veterinarian. More than 40 with effort is concerning; around 60 or more, blue gums, or collapse warrants emergency care. |
Published veterinary ranges vary slightly. For example, Merck Veterinary Manual, the American Red Cross, and veterinary hospitals use somewhat different ranges depending on whether they are describing sleeping dogs, awake clinic patients, puppies, or triage cases. That does not mean one source is necessarily wrong. It means the circumstances behind the measurement matter.
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What does “resting” mean?
A resting measurement should be taken after your dog has been indoors and calm for several minutes. The dog should not have just exercised, played, barked, eaten, overheated, or become frightened. For respiratory-rate monitoring, sleeping is often the best condition—provided the dog is genuinely asleep or quietly settled and is not dreaming, whining, or panting.
Heart rate and breathing rate commonly rise after activity, excitement, pain, fear, heat, or restraint. A veterinary clinic reading may also be higher than a home reading because of handling and stress. The most useful home measurement is therefore often a repeated trend taken under similar conditions, not one number taken during an unusual event.
A 2025 home-monitoring study of 703 apparently healthy adult dogs found lower nighttime values than daytime values: median heart rate was 58.3 beats per minute at night versus 61.3 during the day, while median respiratory rate was 14.2 at night versus 17.4 breaths per minute during the day. These are study medians from wearable monitoring, not universal limits for every dog. Read the study.
Normal temperature in dogs
The usual adult range
Most owner-facing veterinary references place a dog’s normal temperature at approximately 100–102.5°F (37.7–39.2°C). Merck lists an average canine temperature of about 101–102.5°F (38.3–39.2°C), while the American Red Cross lists approximately 99.5–102.5°F (37.5–39.17°C). Small differences between published ranges reflect different reference populations and methods.
A large 2024 analysis examined 24,013 temperature records from 9,782 adult dogs seen at a university veterinary clinic. It reported a mean rectal temperature of 101.5°F (38.6°C) and an indirect reference interval of 99.9–103.1°F (37.7–39.5°C). This was a statistical interval from mixed clinical records, not a controlled study of healthy dogs measured at home. It suggests that a clinic reading near 103°F is not automatically proof of a dangerous fever, but a persistent elevation or an unwell dog still needs veterinary interpretation. See the 2024 temperature study.
Fever is not the same as overheating
Fever is a regulated rise in the body’s temperature set point. It can occur with infection, inflammation, immune-mediated disease, or cancer. Hyperthermia is an uncontrolled temperature rise caused by conditions such as hot-weather exposure, strenuous exercise, heatstroke, or seizures.
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Both can produce a high thermometer reading, but heatstroke is an emergency—not an ordinary fever to watch at home. Merck notes that true canine fevers are commonly in the 103–106°F range, while severe heatstroke and other hyperthermic conditions can reach 106°F or higher. Learn more about fever and hyperthermia.
How to interpret a dog’s temperature
- 100–102.5°F: commonly accepted adult-dog range, assuming the method was reliable.
- 102.5–103°F: mildly above many conventional ranges. Let the dog rest and repeat the measurement if it is safe to do so.
- Persistently above about 103°F: contact your veterinarian, especially if the dog is lethargic, painful, vomiting, coughing, not eating, or otherwise ill.
- Above 104°F: urgent or emergency concern, particularly after heat exposure or with heavy panting, weakness, confusion, vomiting, diarrhea, abnormal gums, or collapse.
- Below 99°F: urgent veterinary concern. Recheck technique, but do not delay care if the dog is weak, cold, collapsed, or unwell.
VCA considers a temperature above 104°F or below 99°F an emergency-level reading. These thresholds should be used with the dog’s condition, not as a substitute for an examination.
Normal heart rate in dogs
How fast should a dog’s heart beat?
A broad veterinary reference for resting dogs is about 70–120 beats per minute. Smaller dogs generally tend to have faster heart rates than larger dogs, although this is a tendency rather than a dependable diagnostic rule.
One commonly used owner-facing set of size bands from the Animal Medical Center lists:
- Small dogs: about 90–120 beats per minute
- Medium dogs: about 70–110 beats per minute
- Large dogs: about 60–90 beats per minute
Another veterinary emergency chart from the University of California, Davis lists broader overlapping bands—approximately 100–160 for small dogs, 60–100 for medium dogs, and 120–160 for puppies. These differences illustrate why a size chart should not be treated as a diagnosis. See the Animal Medical Center guide and the UC Davis vital-sign chart.
Why heart-rate ranges vary
Published values may describe awake resting dogs, sleeping dogs, dogs being examined in a clinic, emergency patients, puppies, or measurements obtained by palpation, a stethoscope, ECG, or a wearable device. Heart rate also changes with age, body size, fitness, sleep, fear, pain, temperature, medication, and illness.
Research does not support a rigid “small dog equals fast heart” formula. In a 2010 24-hour ambulatory ECG study of 60 apparently healthy dogs weighing 2–80 kg, the median minimum heart rate was 42 beats per minute, the median average was 73, and the median maximum was 190. The study found no correlation between minimum, average, or maximum heart rate and body weight. View the ambulatory ECG study.
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Conversely, the 2025 wearable-monitoring study found a modest size effect: adult dogs weighing more than 20 kg had a median resting heart rate of 59.5, compared with 62.1 in dogs weighing 20 kg or less and 65.0 in dogs weighing 10 kg or less. The values overlapped substantially. Size can help with interpretation, but your dog’s established baseline is usually more useful.
Age matters, especially in puppies
The same 2025 study reported a median heart rate of 78.5 beats per minute in puppies up to 12 months, compared with 59.1 in adults and 68.7 in dogs aged 10 years or older. These are population medians from a wearable device, not replacement reference intervals.
Newborn puppies are a separate category altogether. They have different temperature and heart-rate expectations and can deteriorate quickly when chilled, dehydrated, weak, or unable to nurse. Never use an adult chart to assess a neonate.
Heart rate versus pulse rate
Heart rate is the number of heartbeats per minute, usually heard over the chest. Pulse rate is the number of arterial pulses you can feel. They normally match, but they can differ when a heartbeat is too weak to create a palpable pulse—for example, with certain arrhythmias or reduced cardiac output.
In addition to counting, note whether the pulse is regular and strong. Merck advises that an irregular pulse may indicate a cardiac arrhythmia, while a weak or absent pulse can reflect reduced cardiac output, severe vessel constriction, or other serious problems. An irregular or weak pulse deserves veterinary assessment even if the calculated rate falls within a published range. See Merck’s triage parameters.
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How many breaths per minute is normal?
Published references commonly give ranges such as 10–30 or 18–34 breaths per minute. VCA uses approximately 15–30 breaths per minute for a calm or sleeping dog. For practical home monitoring, 15–30 breaths per minute while asleep or quietly resting is a useful starting range.
Respiratory rate is not breed- or size-specific in the same way that people sometimes assume, but it is strongly affected by whether the dog is awake, asleep, excited, hot, painful, or panting. A consistent increase above an individual dog’s normal baseline is often more useful than a single borderline count.
Why sleeping respiratory rate is especially useful
In a prospective study of 114 privately owned, apparently healthy adult dogs, owners recorded 12–14 one-minute sleeping respiratory rates per dog over one week to two months. The mean within-dog average sleeping rate was 13 breaths per minute; no dog had a mean sleeping rate above 23, although three dogs had an individual measurement above 30. The dogs’ mean awake resting rate was higher than their mean sleeping rate. Read the sleeping respiratory-rate study.
This is why veterinarians often ask owners of dogs with heart disease to record the sleeping respiratory rate. VCA says daily monitoring may be recommended for dogs with heart failure, while selected dogs with advanced but asymptomatic heart disease may be monitored once or twice a week according to the veterinarian’s instructions. Do not change a diuretic or other heart medication based only on a home reading; contact the prescribing veterinarian.
Respiratory-rate guideposts
- 15–30 asleep or calmly resting: commonly seen, especially when the dog is comfortable and the rate is normal for that individual.
- Consistently above 30 while asleep or resting: repeat the count and contact your veterinarian if the increase persists or is new for your dog.
- Above 40 at rest: concerning, particularly with coughing, weakness, restlessness, inability to settle, reduced exercise tolerance, or visible effort.
- About 60 or more at rest: immediate emergency concern, especially if sustained.
These are guideposts, not absolute diagnostic boundaries. A dog breathing at 35 breaths per minute with obvious effort may be in greater danger than a comfortable dog briefly recorded at 42 after stress. AAHA emphasizes breathing effort, posture, gum color, comfort, and collapse alongside the rate.
Breathing is not the same as panting
Count a breath when the chest moves in and out once. Do not apply a sleeping respiratory-rate threshold while the dog is actively panting.
- Quiet breathing: usually regular chest movement; the mouth may be closed or only slightly open.
- Panting: rapid, shallow open-mouth breathing, often with the tongue extended. It can be normal after exercise, excitement, stress, or heat.
Unexplained or prolonged panting in a cool, calm environment is not automatically harmless. Panting with weakness, confusion, abnormal gums, vomiting, collapse, pain, or obvious breathing effort should be treated as urgent.
How to measure your dog’s vital signs at home
1. Taking a dog’s temperature
A rectal temperature is generally the practical home comparison for core temperature in an adult dog that can be handled safely.
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- Use a digital thermometer reserved for the dog. Label it and keep it separate from human-use thermometers.
- Have another person calmly support and reassure the dog if possible.
- Apply a water-based lubricant or petroleum jelly to the thermometer tip.
- Position the dog safely—often on its side—and gently lift the tail.
- Insert the thermometer carefully and only as far as is safe for the device and dog. Never force it.
- Wait for the digital reading, then remove the thermometer gently.
- Clean and disinfect it after use, following the product’s instructions.
- Record the temperature, time, method, and whether the dog had recently exercised, panted, or become frightened.
Stop if the dog struggles forcefully, clamps down, becomes distressed, or could bite. A rectal measurement is not worth an injury to the dog or handler. VCA’s temperature guide also recommends professional measurement when home handling is unsafe.
What about ear, armpit, or forehead thermometers?
An ear thermometer can be useful when correctly positioned, but accuracy may be affected by the ear canal’s shape, hair, wax, debris, incorrect placement, or an ear infection. An infected ear may also make the measurement painful. Ear readings should not automatically be treated as interchangeable with rectal readings.
Touching the nose, ears, paws, or groin cannot reliably tell you a dog’s core temperature. Oral measurement is unsafe because the dog may bite the thermometer or handler. Armpit measurements may be useful as rough screening information, but they should not be assumed to equal a rectal temperature.
Noncontact forehead infrared thermometers are not a dependable general substitute for rectal measurement. A multicenter study found poor agreement between noncontact infrared and rectal readings in dogs and cats. See the study on noncontact thermometers.
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Measure when the dog is calm. If the rhythm seems irregular, count for a full 60 seconds rather than counting for 15 seconds and multiplying.
Chest method
- Place your hand over the left side of the chest, near the point where the left elbow meets the rib cage.
- Feel or listen for each heartbeat.
- Count beats for 30 seconds and multiply by two. For an irregular rhythm, count for a full minute.
- Record the rate and whether the beats feel regular, weak, unusually forceful, or difficult to detect.
Femoral-pulse method
- Place two fingertips—not your thumb—on the inside of the upper hind leg.
- Feel for the femoral artery.
- Count pulses for 30 seconds and multiply by two, or count for a full minute.
- If possible, compare the pulse with the heartbeat. A mismatch should be reported to a veterinarian.
These techniques are described by the Animal Medical Center. A pulse that is weak, absent, or irregular is clinically more significant than a mildly unusual rate in an otherwise comfortable dog.
3. Measuring respiratory rate
- Wait until the dog is asleep or resting quietly indoors.
- Watch the chest or abdomen rather than counting panting movements.
- One rise and one fall of the chest equals one complete breath.
- Count for 30 seconds and multiply by two, or count for a full minute.
- Do not count immediately after exercise, excitement, sniffing, whining, dreaming movements, or active panting.
- Repeat an unexpectedly high count once the dog is genuinely settled—unless emergency signs mean you should leave immediately.
- Record both the number and the quality of breathing: effortless or labored, comfortable or restless.
VCA recommends keeping a written record, particularly when monitoring a dog with heart or lung disease.
Build your dog’s personal baseline
Reference ranges are most helpful when combined with a baseline measured when your dog is healthy. Take several readings at approximately the same time of day over multiple days, using the same equipment and technique. Note whether the dog was asleep or awake and record anything that could influence the result.
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A simple log can look like this:
| Date and time | Sleep or awake | Temperature | Heart rate | Respiratory rate | Panting? | Breathing effort | Other signs |
|---|---|---|---|---|---|---|---|
| Effortless / labored | |||||||
| Effortless / labored | |||||||
| Effortless / labored |
Include recent exercise, heat, stress, pain, medication, eating or drinking, coughing, vomiting, diarrhea, appetite, and energy level. Share the log with your veterinarian. A change that is small but persistent for your dog may be more meaningful than a single value that is slightly outside a generic chart.
When should you call a veterinarian?
Monitor and repeat carefully
It may be reasonable to let the dog rest and repeat a mildly abnormal reading when the dog is alert, otherwise acting normally, and has just been excited, exercised, handled, or exposed to warmth. VCA recommends allowing an agitated dog to rest for about 10 minutes before repeating an elevated temperature.
Do not use this approach if the dog has breathing difficulty, abnormal gums, collapse, severe weakness, confusion, suspected heatstroke, or another emergency sign.
Contact your regular veterinarian promptly
Call your veterinarian when:
- A sleeping or resting respiratory rate is repeatedly above the dog’s usual baseline or remains around 30 or higher.
- Temperature remains above the usual range after a safe recheck.
- The heart rate is persistently unusual for that dog, or the rhythm is irregular.
- The dog has a cough, reduced stamina, weakness, poor appetite, vomiting, diarrhea, pain, or unexplained panting.
- You cannot obtain a reliable measurement but the dog seems unwell.
- A dog with known heart disease develops a sustained rise in sleeping respiratory rate.
Go directly to an emergency veterinarian
Seek emergency care for:
- Labored breathing, exaggerated abdominal or chest movement, neck extended to breathe, elbows held away from the body, or inability to lie down comfortably.
- Blue, purple, gray, white, or very pale gums.
- Collapse, fainting, severe weakness, confusion, seizures, or unresponsiveness.
- A sustained resting respiratory rate around 60 or more, or a lower rate accompanied by obvious distress.
- A temperature above 104°F, particularly after heat exposure.
- A temperature below 99°F with lethargy, weakness, collapse, or cold exposure.
- Suspected heatstroke, especially heavy panting with weakness, vomiting, diarrhea, disorientation, or collapse.
- A very fast, very slow, irregular, weak, or absent pulse accompanied by weakness, abnormal gums, collapse, or breathing difficulty.
The dog’s comfort and breathing effort matter more than a cutoff by itself. A dog can require emergency care at a lower respiratory rate if the breathing is visibly difficult.
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Heatstroke is hyperthermia, not simply a routine fever. Do not delay transport while trying to obtain a perfect temperature reading.
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- Move the dog away from heat and contact an emergency veterinary hospital immediately.
- Begin cooling with cool or tepid water and airflow as directed by the veterinary team. AAHA advises against ice or very cold water.
- Offer small amounts of water only if the dog is alert and can swallow safely; never force water.
- Do not wrap the entire dog in wet towels, which can trap heat.
- Continue toward veterinary care even if the dog appears better. Heatstroke can damage organs after the temperature begins to fall.
- AAHA’s public guidance advises stopping active cooling around 103°F unless the veterinary team gives different instructions.
Follow AAHA’s current heatstroke guidance and your emergency hospital’s instructions. Cooling at home is first aid, not a substitute for veterinary treatment.
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Newborn puppies
Newborn puppies cannot regulate body temperature normally during the early neonatal period. VCA lists approximate normal rectal temperatures of:
- First week: 95–99°F
- Weeks two and three: 97–100°F
- By the fourth week: 100–102°F
Their heart-rate expectations also differ substantially from adult dogs. A chilled, weak, dehydrated, or non-nursing neonate can deteriorate rapidly. Get veterinary advice rather than applying an adult vital-sign chart. See VCA’s neonatal puppy guidance and Merck’s neonatal-care guidance.
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Puppies and adolescents
Puppies generally have different heart-rate expectations from adults and may have faster rates. Age, excitement, recent play, growth, and size all matter. Ask your veterinarian for an age-appropriate baseline rather than comparing a puppy with an adult-dog table.
Senior dogs and dogs with heart disease
For a dog with a heart murmur, diagnosed heart disease, previous congestive heart failure, or chronic respiratory disease, the sleeping respiratory-rate trend is often particularly valuable. Ask your veterinarian how frequently to measure it and what change should trigger a call. Never start, stop, or change diuretics, sedatives, antipyretics, or other medication based solely on a home number.
Brachycephalic, athletic, postoperative, and medicated dogs
Flat-faced dogs may have baseline airway limitations, while highly fit dogs may have lower resting rates. Dogs recovering from surgery or anesthesia, or taking sedating or other heart-affecting medication, may also have individualized expectations. Your veterinarian should establish the relevant baseline and specify when a change is significant.
Common mistakes when checking dog vital signs
- Measuring immediately after exercise: wait until the dog is safely calm, unless there are emergency symptoms.
- Counting panting as ordinary breathing: use a sleeping or quiet-resting count instead.
- Using touch to diagnose fever: a warm nose or ears does not reliably measure core temperature.
- Using a noncontact forehead thermometer as proof: these readings may not agree reliably with rectal temperature.
- Forcing a rectal thermometer: stop if the dog resists strongly or could injure itself or you.
- Ignoring breathing effort: posture, gum color, comfort, and chest movement can signal danger before the count reaches a particular threshold.
- Assuming a normal number rules out disease: serious illness can exist with vital signs inside a published range.
- Diagnosing from one abnormal number: stress, technique, activity, heat, pain, and device error can all affect a reading—unless emergency signs are present.
- Changing medication without veterinary direction: home monitoring should guide communication with your veterinarian, not replace it.
Frequently asked questions
Is 103°F a fever in a dog?
It is above many conventional adult-dog reference ranges, but it is not automatically proof of a dangerous fever. Recheck safely after the dog has rested and contact your veterinarian if the reading persists or the dog is unwell. Heat exposure, heavy panting, exercise, stress, measurement technique, fever, and hyperthermia can all produce an elevated reading.
Is 40 breaths per minute normal for a dog?
It can be temporarily elevated after activity, excitement, heat, or stress, but 40 breaths per minute while genuinely asleep or calmly resting is concerning—especially with cough, weakness, restlessness, inability to settle, or visible effort. Repeat the count if the dog is comfortable; seek emergency care immediately if breathing is labored or the gums are abnormal.
Is a heart rate of 120 normal for a dog?
It may be normal for a small dog, puppy, excited dog, or recently active dog. It is at the upper end of many broad adult-dog references and may be high for a large, sleeping dog. Interpret it with age, size, activity, rhythm, pulse strength, and your dog’s usual baseline.
What is a normal sleeping breathing rate for a dog?
About 15–30 breaths per minute is a practical owner-monitoring range, although many healthy dogs sleep below 20. In one study of 114 healthy adult dogs, the mean within-dog average sleeping rate was 13 breaths per minute. A persistent rise above your dog’s baseline is more important than one isolated count.
Does panting count as a dog’s respiratory rate?
Do not use active panting to calculate a calm resting respiratory rate. Wait until the dog is asleep or quietly settled and count one complete chest rise-and-fall as one breath. Panting that is unexplained, prolonged in a cool environment, or accompanied by weakness, abnormal gums, pain, or distress needs veterinary attention.
Can I use a human thermometer on my dog?
A standard digital thermometer may be used if it is dedicated to the dog and used safely for a rectal measurement, but never attempt oral measurement. Lubricate the tip, do not force insertion, and stop if the dog struggles. An ear or noncontact device may not be directly comparable with a rectal reading.
How do I take a dog’s pulse?
Place two fingertips on the femoral artery on the inside of the upper hind leg, count pulses for 30 seconds, and multiply by two. You can also feel heartbeats over the left side of the chest. Count for a full minute if the rhythm is irregular, and report a weak, absent, or mismatched pulse to your veterinarian.
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What temperature is dangerous for a dog?
VCA identifies a temperature above 104°F or below 99°F as an emergency-level reading. The circumstances matter: a high temperature after heat exposure may indicate heatstroke, while a low temperature with weakness or collapse may indicate a serious problem. Do not delay emergency care to repeat a reading if the dog is visibly ill.
Can stress raise a dog’s vital signs?
Yes. Fear, excitement, restraint, exercise, heat, pain, and veterinary-clinic stress can temporarily raise temperature, heart rate, and respiratory rate. Let a comfortable dog rest and repeat a questionable reading when appropriate. Do not wait if there are emergency signs.
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For most calm adult dogs, start with approximately 100–102.5°F, 70–120 beats per minute, and 15–30 sleeping or resting breaths per minute. Measure consistently, establish your dog’s personal baseline, and record trends.
Numbers should never overrule the dog in front of you. Labored breathing, blue or pale gums, collapse, severe weakness, confusion, or suspected heatstroke calls for emergency veterinary care regardless of whether a vital sign happens to fall within a published range.
Frequently Asked Questions
Is 103°F a fever in a dog?
It is above many conventional adult-dog reference ranges, but it is not automatically proof of a dangerous fever. Recheck safely after rest and contact your veterinarian if it persists or the dog is unwell.
Is 40 breaths per minute normal for a dog?
It may be temporarily high after exercise, excitement, heat, or stress. While genuinely asleep or calmly resting, 40 breaths per minute is concerning—especially with coughing, weakness, restlessness, or visible effort.
What is a normal sleeping breathing rate for a dog?
About 15–30 breaths per minute is a practical reference for a calm adult dog, although many healthy dogs sleep below 20. A persistent increase from your dog’s own baseline is especially important.
Can I use a human thermometer on my dog?
A standard digital thermometer may be used if it is dedicated to the dog and used safely for a rectal reading. Never attempt an oral measurement, and never force the thermometer if the dog resists.
How do I take a dog’s pulse?
Place two fingertips on the femoral artery on the inside of the upper hind leg, count pulses for 30 seconds, and multiply by two. Count for a full minute if the rhythm is irregular.
What temperature is dangerous for a dog?
A temperature above 104°F or below 99°F is an emergency-level concern, particularly with weakness, collapse, abnormal gums, breathing difficulty, or heat exposure. Do not delay emergency care to repeat the reading.
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Yes. Puppies generally have different heart-rate expectations, and newborn puppies have substantially lower normal temperatures during their first weeks. Adult charts should never be applied to neonates.
The Bottom Line
For a calm adult dog: expect about 100–102.5°F, 70–120 heartbeats per minute, and 15–30 breaths per minute while asleep or quietly resting. Establish your dog’s baseline and look for trends, but treat breathing effort, gum color, collapse, severe weakness, and suspected heatstroke as more important than any isolated number.
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