All pet calculators

Every tool here is finished and checked, shows its working, and is free to use without signing up.

Dogs

Dog age calculatorYour dog's age in human years, adjusted for size.Dog food calculatorDaily calories and grams, including weight loss.Puppy weight calculatorEstimate how big your puppy will get.Dog ideal weight & body conditionScore your dog and find their ideal weight.Raw feeding calculator80/10/10 amounts for adults and puppies.Dog pregnancy due dateDue date, range and week-by-week timeline.Dog water intakeHow much your dog should drink each day.Dog exercise calculatorDaily minutes by breed, age and health.Puppy schedule plannerHour-by-hour routine, toilet breaks and meals.Dog life expectancyTypical lifespan by breed, and how to add healthy years.Cost of owning a dog (UK)First-year, yearly and lifetime costs you can edit.Which dog breed suits me?Match your home and lifestyle to breeds.

Cats

Cat age calculatorYour cat's age in human years.Cat food calculatorCalories, wet and dry split, treats.Cat ideal weight & body conditionNine-point score and ideal weight.Cat pregnancy due dateDue date, range and timeline.Cost of owning a cat (UK)What a cat really costs, year by year.

Rabbits & guinea pigs

Rabbit food calculatorHay, greens and pellets, plus age in human years.Hutch & run size checkerCheck your setup against RWAF and RSPCA guidance.Cost of owning a rabbit (UK)Set-up and running costs for a bonded pair.

Horses

Horse weight calculatorEstimate weight from girth and body length.Horse feed calculatorDaily and weekly forage in kilograms.Horse rug size calculatorUK rug size in feet and inches.Cost of keeping a horse (UK)Livery, farrier, feed and vet costs.

Fish

Aquarium volume calculatorLitres, heater wattage and filter flow.

All pets

Pet medication unit converterConvert a prescribed dose from mg to ml.Pet travel crate sizeMinimum crate size and nearest standard.UK pet travel plannerEU trip dates, certificate window and worming times.Vaccination, flea & worming plannerWhat's due next, with reminders and a health record.Treat translatorWhat that treat is worth in human food.Pet insurance claim simulatorSee what you'd pay and what the insurer pays.

Safety

My pet ate somethingToxicity checker for common hazards.Walk Check – is it too hot?Pavement temperature and safe walk times.Hot car timerHow fast a parked car heats up, and what to do.Fireworks season plannerCountdown and week-by-week plan for pets.Pet emergency – what to doFirst steps when something is wrong.