Vital signs are the cornerstone of assessing a pet's health. Knowing what is normal for your dog or cat helps you recognize when something is wrong—whether at home, during illness, or in an emergency. This guide covers heart rate, respiratory rate, and body temperature for dogs and cats at different life stages.
Heart rate varies significantly with size, age, and fitness. Smaller animals have faster heart rates than larger ones. Excitement, fear, pain, and fever also elevate heart rate.
| Category | Heart Rate (beats/min) |
|---|---|
| Adult dogs (large breed) | 60-100 |
| Adult dogs (small breed) | 80-120 |
| Puppies | 120-160 |
| Adult cats | 120-140 |
| Kittens | 200-300 |
How to measure: Feel the femoral artery inside the hind leg where it meets the abdomen. Count beats for 15 seconds and multiply by 4. Alternatively, place your hand over the chest behind the left elbow.
Respiratory rate should be measured when the pet is at rest—not panting. Panting in dogs is normal for thermoregulation; count only when the dog is calm and breathing through the nose.
| Category | Respiratory Rate (breaths/min) |
|---|---|
| Dogs (at rest) | 10-30 |
| Cats (at rest) | 20-40 |
How to measure: Watch the chest rise and fall. Count for 15 seconds and multiply by 4. One rise and one fall = one breath.
Normal body temperature is similar across dogs and cats. Hypothermia (below 99°F) and hyperthermia (above 103°F) warrant attention.
| Category | Temperature Range |
|---|---|
| Dogs and cats | 99.5°F - 102.5°F (37.5°C - 39.2°C) |
How to measure: Use a digital rectal thermometer. Lubricate the tip, insert gently about 1 inch, and hold until it beeps. Ear thermometers are less reliable in pets.
Warning: Emergency values—Heart rate: extremely fast (over 180 in resting dog) or very slow (under 50) with weakness. Respiratory: over 40 at rest, open-mouth breathing in cats. Temperature: below 98°F (hypothermia) or above 104°F (fever/heatstroke).
Practice measuring vital signs when your pet is healthy so you have a baseline. Use the Vital Signs Reference for complete ranges. Record values during wellness visits. If you notice persistent abnormalities or your pet seems unwell, contact your veterinarian. Vital signs are one piece of the puzzle—behavior, appetite, and overall demeanor matter just as much.
- Heart rate — dogs 60-140 bpm, cats 120-140 bpm; measure femoral artery.
- Respiratory rate — dogs 10-30, cats 20-40 at rest; count when not panting.
- Temperature — 99.5-102.5°F normal; rectal most accurate.
- Emergency signs — HR >180 or <50, RR >40 at rest, temp <98°F or >104°F.