Free dog calculators and tools
Four quick tools for the questions that come up most: how much to feed, how old your dog really is, what size harness to order, and what a healthy adult of their breed usually weighs. Everything runs in your browser. No sign-up, no email, nothing stored.
Dog calorie calculator
Estimate how much your dog should be eating each day.
Open the toolDog age in human years
A better answer than multiplying by seven.
Open the toolHarness size guide
Measure once, order once. Works in centimetres or inches.
Open the toolBreed measurements
Typical adult height and weight for 15 common breeds.
Open the tool
A note on what these are for
Every one of these gives an estimate. They are useful for sanity-checking a feeding guide, deciding which size to order, or settling an argument about how old your dog is in human terms. None of them replaces your vet, and none of them knows anything about your particular dog’s health.