Pet Tools
Free online pet tools — fast, private, and easy to use. No sign-up required.
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Dog Age in Human Years
Convert your dog's age to human years by breed size. Uses AKC-based conversion with small, medium, large, and giant breed tables. Free dog age calculator.
Cat Age in Human Years
Convert your cat's age to human years. Uses the standard cat age chart: year 1 = 15, year 2 = 24, then +4/year. Free cat age calculator.
Dog Food Calculator
Calculate daily kibble amount for your dog by weight, age, and activity level using the RER formula. Shows cups/day at different calorie densities.
Cat Food / Portion Calculator
Calculate how much to feed your cat daily. Enter weight, age, activity level, and food type (dry/wet) to get exact portion sizes and daily calorie needs.
Puppy Weight Predictor
Predict how big your puppy will get. Enter breed size category, current age, and weight to estimate adult weight using the standard breed growth formula.
Pet Age (Any Species) Calculator
Convert your pet's age to human years. Works for dogs (by size), cats, rabbits, hamsters, and more. Uses the latest scientific calculation methods.
Dog Pregnancy / Gestation Calculator
Calculate your dog's due date and gestation timeline. Enter breeding date to get whelping date, key pregnancy milestones, and weekly development stages.
Dog Chocolate Toxicity Calculator
Determine if your dog ate a dangerous amount of chocolate. Enter dog weight and chocolate type and amount to assess toxicity risk and whether vet care
Pet Calorie (RER/MER) Calculator
Calculate your dog or cat's daily calorie needs using the RER/MER formula. Enter species, weight, age, and activity level to get precise daily caloric
Pet Water Intake Calculator
Calculate how much water your dog or cat should drink daily. Enter weight and activity level to get recommended daily water intake and signs of dehydration.
Litter & Supplies Estimator
Estimate your monthly pet supply costs. Enter your pet type, litter brand, food brand, and accessories to see monthly and annual supply spending.
Pet Ownership Cost Calculator
Calculate the total annual and lifetime cost of owning a pet. Includes food, vet care, grooming, supplies, training, and unexpected costs for dogs, cats
Random Pet Image & Fact Generator
Get a random dog or cat photo with one click — plus a fun random cat fact. Free random pet image generator powered by the open Dog CEO and Cataas APIs.
Popular Pet Tools
- Dog Age in Human YearsEnter your dog's age and breed size to see the human age equivalent, life stage, and expected lifespan range based on AKC research.
- Cat Age in Human YearsEnter your cat's age to see the human equivalent, life stage, and what to expect at their current stage of life.
- Dog Food CalculatorEnter your dog's weight, age, activity level, and body condition to get daily calorie needs and cups of kibble per day.
- Cat Food / Portion CalculatorPrevent overfeeding or underfeeding your cat. Get daily calorie needs (RER × factor) and portion sizes for dry kibble, wet food, or a mix — based on your cat's profile.
- Puppy Weight PredictorFind out your puppy's predicted adult size. Uses breed-size-specific growth curves to estimate full-grown weight from current puppy weight and age.
- Dog Chocolate Toxicity CalculatorFind out instantly if your dog's chocolate exposure is an emergency. Enter weight, chocolate type, and amount to get a toxicity level and clear guidance on next steps.
Often used together
- Daily Water Intake CalculatorFind your personalized daily water intake in mL, oz, cups, and bottles. Adjusted for activity level, climate, and special conditions.
- Age CalculatorEnter your date of birth to find your exact age in years, months, days, and hours. See your next birthday countdown.
- Savings Goal CalculatorSet a savings goal and find out exactly when you'll reach it, or discover the monthly savings needed to hit a target date.
About Pet Tools
Looking after an animal means making a lot of small judgement calls: how much to feed, how a puppy will grow, whether a treat is safe, and what a year of care really costs. ToolsHub brings those questions together in a set of pet calculators that turn rough guesses into clearer, owner-friendly estimates you can act on with more confidence.
Age and growth are the most popular starting points. The Dog Age in Human Years and Cat Age in Human Years tools translate your companion's years into a more relatable figure, the Puppy Weight Predictor projects an adult size, and the Pet Age calculator covers other species too. The Dog Pregnancy and Gestation calculator helps breeders and worried owners track a likely due window.
Daily care is just as well served. The Dog Food Calculator and the Cat Food and Portion Calculator suggest sensible serving sizes, while the Pet Calorie tool estimates resting and maintenance energy needs. The Pet Water Intake Calculator flags how much your animal should drink, the Litter and Supplies Estimator plans your shopping, and the Pet Ownership Cost Calculator adds up the real annual budget. The Dog Chocolate Toxicity Calculator gives a fast risk read if a treat goes missing.
Every calculator runs in your browser, so the details you enter about your pet stay on your device. Just as importantly, these tools provide general estimates for planning and learning, not veterinary advice. They are a great way to get oriented, but your vet knows your animal's history and should guide any decision about health, diet, or treatment. The tools are free and need no account.