Pet math, done properly.
Quick calculators for the questions dog and cat owners actually ask, from how much to feed each day to whether that missing chocolate bar needs a trip to the vet. Every tool shows how it works and where the numbers come from.
The old “times seven” rule gets most dogs wrong. Try it with your dog’s size
The calculators
- Dog age calculatorYour dog’s age in human years, adjusted for size.Open
- Dog food calculatorHow many cups or grams of your food to feed each day.Open
- Dog calorie calculatorDaily calories for your dog’s weight, age and lifestyle.Open
- Puppy weight calculatorEstimate how big your puppy will be as an adult.Open
- Chocolate toxicity calculatorCheck how serious a chocolate snack is for your dog.Open
- Dog pregnancy calculatorDue date and week-by-week dates from the mating day.Open
- Cat age calculatorYour cat’s age in human years and life stage.Open
Sources you can check
Each calculator uses published veterinary references, such as the Merck Veterinary Manual and AAHA guidelines, and links to them at the bottom of the page.
The working, shown
You’ll see the formula or chart behind every result, plus a worked example, so you can sanity-check the number before you rely on it.
Honest about limits
These are estimates. When a result could mean your pet needs care, we say so plainly and tell you who to call.