Adult Dog Weight Predictor
Predict your puppy's adult weight using breed-size formulas. Small breeds: 6-week weight × 4, Medium: 14-week × 2.5, Large: 20-week × 2, Giant: 24-week × 2.
Free Pets Calculators
103 toolsFun and useful pet calculators for dog and cat age conversions, calorie needs, and more. Not veterinary advice.
Dogs
5 calculatorsDog-specific calculators.
Dog Age to Human Years Calculator
Convert your dog's age to human years using the AKC formula. Accounts for breed size differences — small, medium, large, and giant dogs age at different rates.
Dog Lifetime Cost Calculator
Estimate the total lifetime cost of owning a dog including food, vet care, grooming, insurance, and supplies. Plan for 10-15 years of pet expenses accurately.
Puppy First Year Cost Calculator
Estimate all first-year puppy expenses: adoption, vaccines, spay/neuter, supplies, food, training, and vet visits. Budget for your new puppy's complete first year.
Puppy Growth Chart Calculator
Track your puppy's weight-by-age against standard breed-size growth curves. See if your puppy is on track for healthy development with percentile ranges.
Cats
5 calculatorsCat-specific calculators.
Adult Cat Weight Predictor
Predict your kitten's adult weight using the 16-week doubling method and breed-specific adjustments. Estimate how big your cat will get.
Cat Age to Human Years Calculator
Convert your cat's age to human years using the AAHA-approved formula. First year equals 15, second adds 9, each year after adds 4 human years.
Cat Lifetime Cost Calculator
Estimate the total cost of owning a cat over 12-18 years. Includes food, vet care, litter, insurance, supplies, and emergency fund planning.
Kitten First Year Cost Calculator
Estimate all first-year kitten costs including adoption, supplies, vaccines, spay/neuter, and food. Plan your budget before bringing a kitten home.
Kitten Growth Chart Calculator
Track your kitten's weight against standard feline growth curves week by week. See if your kitten is on track for healthy development.
Cross-species pet care tools.
Calculators coming soon.
Dog Care
18 calculatorsDog food, grooming, and daily care calculators.
Dog Boarding Cost Calculator
Calculate dog boarding costs for vacations and trips. Estimate nightly rates plus add-ons like extra walks, grooming, and medication administration for your pet.
Dog Collar & Harness Size Calculator
Find the right collar and harness size for your dog. Measure neck circumference + 2 inches for collar. Measure chest girth behind front legs for harness sizing.
Dog Crate Size Calculator
Find the perfect crate size for your dog. Measure nose-to-tail length + 2-4 inches and standing height + 2-4 inches to determine the right crate dimensions.
Dog Daycare Cost Calculator
Calculate monthly and annual dog daycare costs. Compare daily rates, multi-day packages, and weekly fees based on how many days per week your dog attends daycare.
Dog Emergency Fund Calculator
Calculate how much to save in a pet emergency fund. Target 1-2× the average emergency vet bill based on your dog's size, breed risk, and insurance coverage.
Dog Exercise Needs Calculator
Find out how much daily exercise your dog needs based on breed energy group, age, and health. Get personalized minutes per day and activity type recommendations.
Dog Food Amount Calculator
Calculate exactly how many cups of food your dog needs daily. Based on calorie needs and your food's caloric density for precise portion control.
Dog Food Cost per Month Calculator
Calculate your monthly dog food expense based on daily feeding amount, bag size, and price. Plan your pet budget with accurate per-month food cost estimates.
Dog Food Cost per Year Calculator
Calculate your annual dog food expense including treats and supplements. Get yearly food costs plus monthly averages to plan your complete pet food budget.
Dog Grooming Cost Calculator
Estimate your dog grooming costs based on coat type, breed size, and grooming frequency. Calculate monthly and annual professional grooming expenses for your dog.
Dog Training Cost Calculator
Compare dog training costs: group classes, private sessions, and board-and-train programs. Estimate total training investment based on sessions needed and format.
Dog Treat Allowance Calculator
Calculate the safe daily treat limit for your dog. The 10% rule keeps treats to a healthy amount — see exactly how many treats your dog can have each day.
Dog Walker Cost Calculator
Calculate monthly and annual dog walker costs based on per-walk rate, walks per week, and walk duration. Compare dog walking expenses with daycare alternatives.
Large Breed Puppy Food Calculator
Calculate controlled-growth feeding amounts for large and giant breed puppies. Limits calorie density to ≤3.5 kcal/g with RER × 2.5 for safe skeletal development.
Puppy Feeding Schedule Calculator
Get an age-appropriate feeding schedule for your puppy. 8-12 weeks: 4 meals, 3-6 months: 3 meals, 6-12 months: 2 meals with proper portion sizes per meal.
Puppy Walk Distance Calculator
Calculate safe walk duration for your puppy using the 5-minute rule. Puppies need 5 minutes of exercise per month of age, twice daily, to protect growing joints.
Raw Feeding Ratio Calculator
Calculate daily raw food amounts for your dog using the BARF model. Get exact grams for muscle meat, bone, liver, and organs based on body weight percentage.
Senior Dog Exercise Calculator
Calculate safe exercise amounts for your senior or aging dog. Reduces base activity by 20-40% and recommends low-impact alternatives for joint health.
Dog Health
13 calculatorsDog weight, nutrition, and veterinary cost calculators.
Dog Body Condition Score Calculator
Assess your dog's body condition score on the veterinary 9-point scale. Evaluate rib coverage, waist shape, and abdominal tuck to determine weight status.
Dog Calorie Needs Calculator
Calculate your dog's daily calorie requirements using the RER and MER formulas. Adjusts for activity level, age, and reproductive status for accurate feeding.
Dog Dental Cleaning Cost Calculator
Estimate the cost of a professional dog dental cleaning. Includes anesthesia, scaling, polishing, and potential extractions based on dog size and dental condition.
Dog Flea & Tick Prevention Cost Calculator
Calculate annual flea and tick prevention costs for your dog. Compare monthly topicals, oral chewables, and collars to find the most cost-effective option.
Dog Heartworm Prevention Cost Calculator
Calculate annual heartworm prevention costs for your dog. Compare monthly preventives and annual injections. Heartworm treatment costs $1,000-5,000 vs $60-200/year prevention.
Dog Insurance Premium Calculator
Estimate monthly dog insurance premiums based on breed risk, age, coverage level, deductible, and reimbursement rate. Compare pet insurance costs for your dog.
Dog Spay/Neuter Cost Calculator
Estimate the cost of spaying or neutering your dog. Factors in dog size, gender, age, and whether you choose a full-service vet or low-cost spay/neuter clinic.
Dog Vaccination Cost Calculator
Calculate the cost of your dog's vaccination schedule. Includes core vaccines (DHPP, rabies) and non-core vaccines with doses by age for puppies and adult dogs.
Dog Vet Visit Cost Calculator
Estimate the cost of a veterinary visit for your dog. Add up exam fees, vaccines, tests, and medications to predict your total vet bill before the appointment.
Dog Water Intake Calculator
Calculate how much water your dog should drink daily. The standard guideline is 1 oz per pound of body weight (~60 ml/kg). Adjusts for activity and weather.
Dog Weight Management Calculator
Create a safe weight loss plan for your overweight dog. Calculate reduced calorie targets for 1-2% body weight loss per week with veterinary-backed formulas.
Ideal Dog Weight by Breed Calculator
Look up the AKC-standard ideal weight range for your dog's breed. Compare male vs female ranges, check if your dog is under, over, or at a healthy weight.
Pet Insurance Break-Even Calculator
Calculate when pet insurance pays for itself. Compare total premiums plus deductible against expected veterinary costs to find your insurance break-even point.
Cat Care
16 calculatorsCat food, litter, and daily care calculators.
Cat Boarding Cost Calculator
Calculate total cat boarding costs for your trip. Multiply nightly rate by number of nights plus additional fees for medication and special care.
Cat Carrier Size Calculator
Calculate the right cat carrier size based on your cat's measurements. Carrier length = nose to tail base + 4 inches, height = head height + 3 inches.
Cat Food Amount Calculator
Calculate exactly how much wet or dry food to feed your cat daily. Convert calorie needs to cups, cans, or grams for precise portion control.
Cat Food Cost per Month Calculator
Calculate your monthly cat food expenses based on daily portions, food type, and package pricing. Budget accurately for your cat's nutrition.
Cat Food Cost per Year Calculator
Estimate annual cat food expenses including treats. Multiply monthly food costs by 12 plus treat and supplement budgets for complete planning.
Cat Grooming Cost Calculator
Estimate cat grooming costs based on coat type and frequency. Short-haired cats cost $30-50 occasionally, long-haired $50-90 every 4-6 weeks.
Cat Litter Cost Calculator
Calculate monthly cat litter costs based on boxes, litter type, and change frequency. Compare clumping, crystal, and natural litter expenses.
Cat Sitter Cost Calculator
Estimate cat sitting costs per trip. Calculate by per-visit rate times visits per day times days, or compare daily and overnight sitter rates.
Cat Treat Limit Calculator
Calculate the maximum daily treat calories for your cat using the 10% rule. Keep treats safe and prevent overfeeding with precise limits.
Cat Tree Size Calculator
Calculate the ideal cat tree height and platform count based on your cat's size and number of cats. Height = full stretch × 1.5, platforms per cat ≥ 2.
Indoor Cat Enrichment Cost Calculator
Calculate indoor cat enrichment costs including toys, puzzle feeders, cat trees, window perches, and subscription boxes. Keep your indoor cat happy on budget.
Kitten Feeding Schedule Calculator
Get a customized kitten feeding schedule by age. From 4 meals a day for young kittens to 2 meals for older ones, with proper portion guidance.
Litter Box Count Calculator
Calculate the ideal number of litter boxes using the n+1 rule. For multi-cat households, always have one more box than cats for hygiene and harmony.
Litter Box Maintenance Calculator
Calculate weekly litter box maintenance time. Factor scooping 2× daily plus weekly full changes to plan your cleaning schedule efficiently.
Raw Feeding Calculator for Cats
Calculate daily raw food amounts for cats. Get the 84/6/5/5 ratio of meat, bone, liver, and organ based on body weight percentage.
Senior Cat Diet Calculator
Calculate optimal calorie and protein needs for senior cats (7+ years). Uses RER × 1.0-1.1 with increased protein and limited phosphorus guidance.
Cat Health
13 calculatorsCat weight, nutrition, and veterinary cost calculators.
Cat Body Condition Score Calculator
Assess your cat's body condition on the 9-point BCS scale. Evaluate rib palpation, waist visibility, and abdominal tuck for ideal weight.
Cat Calorie Needs Calculator
Calculate your cat's daily calorie needs using the RER and MER formulas. Adjust for activity level, age, and weight management goals.
Cat Dental Cleaning Cost Calculator
Estimate cat dental cleaning costs including anesthesia, scaling, polishing, and extractions. Professional cat dental ranges from $250 to $700 or more.
Cat Flea Prevention Cost Calculator
Calculate monthly and annual cat flea prevention costs. Compare topical, oral, and collar treatments for year-round flea protection budgeting.
Cat Insurance Premium Calculator
Estimate monthly cat insurance premiums based on breed, age, coverage level, and deductible. Compare accident-only vs. comprehensive plans.
Cat Spay/Neuter Cost Calculator
Estimate cat spay or neuter surgery costs including the procedure, pre-surgical bloodwork, pain medication, and other fees. Spay: $200-400, neuter: $100-250.
Cat Vaccination Cost Calculator
Calculate cat vaccination costs for core (FVRCP, rabies) and non-core vaccines. Budget for kitten series and adult boosters accurately.
Cat Vet Visit Cost Calculator
Estimate total cat vet visit costs including exam fee, vaccines, diagnostics, and medication. Budget for routine and sick visits accurately.
Cat Water Intake Calculator
Calculate how much water your cat needs daily based on body weight and diet type. Cats need 3.5-4.5 oz per 5 lbs, adjusted for wet food moisture.
Cat Weight Management Calculator
Create a safe weight loss plan for your cat. Calculate reduced calories for 1-2% weekly loss and track weeks to reach your cat's goal weight.
Ideal Cat Weight Calculator
Find your cat's ideal weight based on breed and frame size. Average domestic cats should weigh 8-11 lbs with breed-specific adjustments.
Indoor Cat Calorie Calculator
Calculate daily calorie needs for indoor cats using RER × 1.2-1.4 sedentary factor. Keep your indoor cat at a healthy weight with precise feeding.
Outdoor Cat Calorie Calculator
Calculate daily calorie needs for active outdoor cats using RER × 1.4-2.0 activity factor. Ensure your outdoor cat gets enough energy for roaming.
Small Pets
6 calculatorsRabbit, guinea pig, hamster, ferret, and chinchilla calculators.
Chinchilla Dust Bath Calculator
Calculate dust bath frequency and duration for chinchillas. 2-4 baths per week, 10-15 minutes each, with 1-2 inches of dust depth.
Ferret Food Calculator
Calculate daily food amounts for ferrets. 5-7% of body weight daily with 32-38% protein and 15-20% fat for optimal nutrition.
Guinea Pig Vitamin C Calculator
Calculate daily vitamin C needs for your guinea pig. 10-30 mg/kg body weight from diet and supplements to prevent scurvy.
Hamster Cage Size Calculator
Calculate the minimum cage size for your hamster. Syrian hamsters need 450+ sq in, dwarf hamsters need 360+ sq in of floor space.
Hamster Wheel Size Calculator
Find the right wheel size for your hamster. Syrian hamsters need 10-12" wheels, dwarf hamsters need 6.5-8" diameter minimum.
Rabbit Food Amount Calculator
Calculate the right daily food amounts for your rabbit. Unlimited hay plus 1/4 cup pellets per 5 lbs and 1 cup greens per 2 lbs.
Aquarium
8 calculatorsFish tank, filter, heater, and aquarium cost calculators.
Aquarium Cost Calculator
Estimate the total cost of setting up and maintaining an aquarium. Includes equipment, livestock, electricity, food, and supplies.
Aquarium Filter GPH Calculator
Calculate the minimum filter flow rate (GPH) for your aquarium. Freshwater needs 4× turnover, saltwater 6-10× per hour.
Aquarium Heater Size Calculator
Calculate the right wattage aquarium heater for your tank. Uses tank gallons and temperature differential to recommend heater wattage.
Aquarium Lighting Calculator
Calculate the right aquarium light wattage by tank type. Fish-only: 1-2 W/gal, planted: 2-5 W/gal, reef: PAR-based lighting.
Aquarium Water Change Calculator
Calculate how much water to remove and replace during aquarium water changes. Use 10-25% weekly changes to maintain water quality.
Fish Food Amount Calculator
Calculate how much to feed your fish daily. Feed what fish consume in 2-3 minutes, 1-2 times per day, based on fish count and size.
Fish Tank Size Calculator
Calculate the ideal aquarium size for your fish based on species, adult length, and bioload. Use the 1 gallon per inch rule with adjustments.
Saltwater Mix Calculator
Calculate the amount of salt mix needed for your saltwater aquarium. Target specific gravity 1.023-1.025 for marine fish and corals.
Birds
4 calculatorsBird cage, food, and care cost calculators.
Bird Cage Size Calculator
Calculate the minimum bird cage dimensions based on wingspan and body length. Width = 2× wingspan, depth = 1.5× wingspan, height = 3× length.
Bird Food Amount Calculator
Calculate how much food your bird needs daily. 10-15% of body weight per day: 50-70% pellets, 20-30% vegetables, and treats.
Bird Vet Cost Calculator
Estimate avian veterinary costs including wellness exams ($75-150), blood panels ($100-250), and annual care for pet birds.
Parrot Lifespan Cost Calculator
Calculate the total lifetime cost of owning a parrot. From budgies (5-10 years) to macaws (50-80 years), estimate annual × lifespan costs.
Reptiles
6 calculatorsReptile enclosure, lighting, and habitat calculators.
Reptile Enclosure Size Calculator
Calculate the minimum enclosure size for your reptile. Based on species body length — typically 1.5-2× length, 1× depth, 1-1.5× height.
Reptile Heat Lamp Calculator
Calculate the right heat lamp wattage for your reptile enclosure. Factors in tank size, ambient temperature, and target basking temperature.
Reptile Humidity Calculator
Find the right humidity level for your reptile species. Target ranges, misting schedules, and tips for maintaining proper enclosure humidity.
Snake Feeding Schedule Calculator
Calculate feeding frequency and prey size for your snake. Based on species, age, and body weight — 10-15% of body weight for juveniles, 5-10% for adults.
Turtle Tank Size Calculator
Calculate the minimum tank size for your pet turtle. 10 gallons per inch of shell length plus basking area and filtration space.
UVB Light Distance Calculator
Calculate the correct mounting distance for your reptile UVB light. Based on bulb type, strength, and mesh screening to ensure proper UV exposure.
General
9 calculatorsMulti-pet household and general pet cost tools.
Annual Pet Checkup Cost Calculator
Estimate the cost of annual wellness visits for your pets. Exam fees, vaccinations, lab work, dental cleanings, and preventive care by species.
Horse Feed Amount Calculator
Calculate daily feed amounts for your horse. Horses eat 1.5-3% of body weight daily — hay, grain, and supplements by workload and weight.
Horse Hay Quantity Calculator
Calculate how much hay to buy for your horse. Monthly and annual hay needs by number of horses, with bale count and cost estimates.
Horse Shoeing Cost Calculator
Estimate annual horse shoeing and hoof care costs. Farrier visits every 6-8 weeks at $35-$250+ depending on services needed.
Horse Stall Size Calculator
Calculate the ideal stall size for your horse. Minimum 12'×12' for average horses, 14'×14'+ for large breeds and broodmares.
Multi-Pet Household Cost Calculator
Calculate total annual costs for a multi-pet household. Add dogs, cats, and other pets to see combined food, vet, and care expenses.
Pet Deposit vs. Pet Rent Calculator
Compare pet deposit and monthly pet rent costs for renters with pets. Calculate total cost over your lease to find the cheaper option.
Pet Sitter vs. Kennel Cost Calculator
Compare pet sitter and kennel boarding costs. Factor in per-night rates, number of pets, trip length, and extras to find the best value.
Pet Travel Cost Calculator
Estimate the cost of traveling with your pet. Flights, hotels, car travel, and pet-friendly accommodation surcharges for trip planning.