Dog Calculators

Dog Age Calculator

Convert dog years to human years using the science-based 16·ln(age)+31 formula.

Dog BMI Calculator

Estimate a dog's body mass index and body condition from weight and height.

Dog Calorie Calculator

Calculate daily dog calorie needs (RER and MER) from weight and activity level.

Dog Food Calculator

Calculate daily dog food portions in cups and grams from calories and food density.

Dog Size Calculator

Estimate a puppy's adult weight from current weight, age, and breed size.

Dog Water Intake Calculator

Calculate a dog's daily water requirement from weight, activity, and diet.

Dog Life Expectancy Calculator

Estimate a dog's life expectancy from breed size and current age.

Dog Crate Size Calculator

Calculate the recommended crate dimensions from dog length and height.

Dog Harness Size Calculator

Find the recommended harness size from chest girth and neck measurements.

Dog Heat Cycle Calculator

Estimate the next heat cycle date and current stage from the last heat date.

Dog Quality of Life Calculator

Score a dog's quality of life across pain, mobility, appetite, and happiness.

Raw Dog Food Calculator

Calculate daily raw food portions (2–3% of body weight) with a meal plan.

Dog Chocolate Toxicity Calculator

Estimate theobromine toxicity risk from chocolate type, amount, and dog weight.

Dog Onion Toxicity Calculator

Estimate onion toxicity risk from onion amount consumed and dog weight.

Dog Raisin Toxicity Calculator

Estimate raisin/grape toxicity risk from amount consumed and dog weight.

Omega-3 for Dogs Calculator

Calculate daily omega-3 (EPA+DHA) dosage for dogs from weight and supplement concentration.

Cost of Owning a Dog Calculator

Estimate annual and lifetime cost of owning a dog from size and care factors.