How does my dog’s weight compare?
Breed weight ranges are wide, but the midpoints are useful. Enter your dog’s weight and see where it sits.
1.11 × a border collie
20 kg is heavier than 4 of the 9 references on this page.
Reference figures are measurements and are rounded; the unit conversion behind them is exact.
| Reference | Size | Yours ÷ theirs | Note |
|---|---|---|---|
| chihuahua | 2.5 kg | 8× | |
| pug | 7.5 kg | 2.67× | |
| beagle | 11 kg | 1.82× | |
| border collie | 18 kg | 1.11× | |
| Labrador retriever | 30 kg | 0.667× | |
| German shepherd | 34 kg | 0.588× | |
| Rottweiler | 45 kg | 0.444× | |
| Great Dane | 62 kg | 0.323× | |
| English mastiff | 90 kg | 0.222× |
Worth knowing
- The mastiff and the chihuahua differ by a factor of 36 — the widest weight range of any single species on Earth.
- Weight alone is a poor health measure for dogs; vets use a nine-point body condition score based on whether ribs can be felt.
Frequently asked
How do I know if my dog is overweight?
You should be able to feel the ribs under a thin layer of fat without pressing, and see a waist from above. Around half of pet dogs in Western countries fail that test.
When does a dog reach adult weight?
Small breeds by about nine months, large breeds not until 18 to 24 months. A Great Dane puppy at six months is nowhere near finished.