Dog calculators

Feeding and weight

Portions, calories and healthy weight. Start with the food calculator if you just want to know how many cups to feed.

• 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
• Dog weight loss calculatorIdeal weight, daily calories and a safe timeline to get there.Open

Age and growth

How old your dog is in human terms, and how big your puppy is likely to get.

• Dog age calculatorYour dog’s age in human years, adjusted for size.Open
• Puppy weight calculatorEstimate how big your puppy will be as an adult.Open

Health and safety

Quick checks for worrying moments, like a stolen chocolate bar or a dog that suddenly won’t stop drinking.

• Chocolate toxicity calculatorCheck how serious a chocolate snack is for your dog.Open
• Dog water intake calculatorHow much water is normal, and when thirst is a warning sign.Open

Pregnancy and heat

Due dates, a week-by-week pregnancy timeline and when the next heat is likely to start.

• Dog pregnancy calculatorDue date and week-by-week dates from the mating day.Open
• Dog heat cycle calculatorWhen the next heat starts and her likely fertile days.Open

Home and gear

Practical sizing for everyday gear.

• Dog crate size calculatorThe right crate size from two quick measurements.Open

How these calculators work

These tools are for dog owners who want a proper answer rather than a rule of thumb. Every calculator shows its formula, walks through a worked example and links to the veterinary sources it’s built on, so you can check the numbers yourself. More about how we build them.