Dog calculators, with the reasoning included.
Work out portions, water, age, crate size and due dates. Every result comes with the formula and the situations where the estimate needs a vet instead.
Dog Food Calculator
Daily calories and cups, based on weight, life stage and your food’s kcal/cup.
Open calculator DogDog Age Calculator
Convert dog years to human years with the size-adjusted 15/24 method.
Open calculator DogDog Water Intake Calculator
A daily water target adjusted for activity, heat and wet food.
Open calculator DogDog Crate Size Calculator
Measure once, then match body length, shoulder height and weight to a crate.
Open calculator DogChocolate Toxicity Calculator for Dogs
Estimate theobromine dose and see whether the amount is low risk or an emergency.
Open calculator DogDog Pregnancy Calculator
Due date and whelping window from the breeding date, plus warning signs.
Open calculator DogPuppy Weight Calculator
Project adult weight from current weight, age and expected breed size.
Open calculator DogDog Ideal Weight Calculator
Calculate target healthy weight from current weight and 9-point Body Condition Score.
Open calculator DogDog Weight Loss Calculator
Safe weekly timeline and target daily calories to help your dog reach their goal weight.
Open calculator Dogs & catsPet Cost Calculator
First-year and ongoing costs for a cat or dog, with the hidden expenses listed.
Open calculatorWhere to start
New puppy? The puppy weight and crate size calculators help you plan the first year. Adult dog? Start with the food and water calculators, then check the age calculator to see when senior screening should begin. If your dog ate chocolate, use the toxicity calculator immediately and call your vet or a pet poison service.