Pet Calculators
Pet age, feeding, housing and care calculations
67 calculators in this category
Dog Age Calculator
Convert dog years to human years accurately. Use our science-based calculator that accounts for breed size differences. Small dogs age slower than large breeds.
Cat Age Calculator
Convert your cat's age to human years using a science-based formula. See life stages, indoor vs outdoor lifespan differences, and accurate age estimates.
Aquarium Calculator
Calculate fish tank volume, stocking levels, and equipment needs. Determine how many fish your aquarium can hold, heater wattage, and filter requirements.
Horse Feed Calculator
Find out how much hay and grain your horse needs each day based on weight and activity level. Get monthly feed amounts and cost estimates for your barn.
Aquarium Stocking Calculator
Determine how many fish your tank can safely hold based on species type and tank size. Get stocking limits, filter recommendations, and bioload ratings.
Chicken Coop Size Calculator
Size your chicken coop and run based on flock size and breed type. Get nest box count, roosting space, weekly feed, and expected egg production numbers.
Reptile Terrarium Calculator
Find the right enclosure size for your snake, lizard, gecko, or turtle based on adult length. Get dimensions, volume, heat lamp wattage, and UVB needs.
Reptile Heating & Lighting Calculator — Wattage, UVB & Cost
Calculate heat lamp wattage, UVB tube size, and monthly electricity costs for your reptile enclosure. Covers 8 species with Ferguson zone and temp data.
Pet First-Year Cost Calculator — Budget for a New Pet
Estimate the true first-year cost of owning a dog, cat, rabbit, reptile, fish, or bird. Covers adoption fees, food, vet visits, supplies, and insurance.
Aquarium Water Change Calculator — Schedule & Volume
Calculate how much water to change and how often for your freshwater or saltwater aquarium. Get schedules, volume in gallons, and supply cost estimates.
Raw Dog Food Calculator
Calculate daily raw feeding amounts for your dog using BARF or Prey Model Raw (PMR) ratios. Get muscle, bone, organ, and vegetable breakdowns by weight.
Koi Pond Calculator
Calculate koi pond volume, max fish capacity, pump size, filter rating, UV sterilizer wattage, liner dimensions, and full equipment costs for any pond shape.
Horse Weight Calculator
Estimate your horse's weight using the veterinary heart girth formula. Get body condition score assessment, daily feed requirements, and breed comparisons.
Dog Exercise Calculator
Calculate how much exercise your dog needs daily based on breed size, energy level, and age. Get a personalized plan with walk, play, and training time.
Aquarium Electricity Cost Calculator
Calculate how much electricity your aquarium uses per month. Add heaters, filters, lights, and pumps to see itemized costs and annual energy estimates.
Rabbit Hutch Size Calculator
Calculate the right hutch size for your rabbits using ARBA guidelines. Enter weight and count to get minimum area, exercise space, and daily feed amounts.
Bird Feeder Calculator — Seed & Costs
Estimate weekly bird seed consumption and monthly costs for your backyard feeders. Factor in feeder count, daily bird visitors, seed type, and season.
Pet Food Cost Calculator — Monthly Costs
Find out what you actually spend on dog or cat food per day, month, and year. Enter bag size, price, and daily cups to see cost per serving and budget.
Dog Feeding Calculator
Calculate how much to feed your dog daily based on weight, age, activity level, and food calories. Get cups per day, grams, and monthly bag estimates.
Dog Crate Size Calculator
Find the perfect dog crate size by breed or measurements. Get recommended dimensions, standard sizes, pad suggestions, and airline travel compliance tips.
Bird Cage Size Calculator — Find the Right Cage for Your Bird
Find the right bird cage size for 13 species from finches to macaws. Get minimum dimensions, bar spacing, and accessory counts for single or multiple birds.
Hamster Cage Size Calculator — Find the Right Enclosure
Calculate minimum hamster cage size by species using US, German TVT, and DieBrain standards. Check bedding depth, wheel size, and bar spacing requirements.
Guinea Pig Cage Size Calculator — C&C Grid Planner
Calculate the ideal guinea pig cage size and C&C grid count for 1-6 pigs. Plan coroplast dimensions, compare minimum vs. recommended, and check boar needs.
Dog Pregnancy Calculator — Due Date & Weekly Timeline
Calculate your dog’s due date and track pregnancy week by week. Enter mating date and breed size to see milestones, ultrasound timing, and whelping prep.
Turtle Tank Size Calculator — Find the Right Tank for Your Turtle
Calculate the right tank size for your turtle species. Get filter GPH, heater wattage, water depth, and equipment needs for 10 popular pet turtle species.
Cat Food Calculator — Daily Calories & Feeding Guide
Calculate how much to feed your cat based on weight, age, and activity level. Get daily calories, dry and wet food portions, and monthly cost estimates.
Cat Litter Calculator — Monthly Usage & Cost by Type
Calculate monthly cat litter usage and cost by type. Compare clumping clay, crystal, pine, and tofu litter expenses for 1–10 cats with the N+1 box rule.
Egg Incubation Calculator — Hatch Date & Temperature Guide
Calculate egg incubation hatch dates, temperature, and humidity for chickens, ducks, quail, geese, and turkeys. Track daily milestones from set to hatch.
Pet Weight Tracker Calculator
Predict your puppy or kitten's adult weight with veterinary growth multipliers. Enter current age, weight, breed size, and sex for accurate estimates.
Terrarium Builder Calculator
Calculate substrate, drainage, charcoal, and mesh quantities for your terrarium build. Supports tropical, arid, temperate, and paludarium layer setups.
Aquarium CO₂ Calculator — pH, Bubble Rate & Drop Checker Guide
Calculate aquarium CO₂ concentration from pH and KH readings. Find target pH, bubble rate, drop checker color, and dosing schedule for planted tank CO₂ systems.
Dog Ramp Calculator — Length, Angle & Width by Size and Condition
Calculate the ideal dog ramp length and incline angle for beds, couches, cars, and SUVs. Vet-recommended slopes for senior, injured, and post-surgery dogs.
Chinchilla Cage Size Calculator — Minimum Dimensions & Setup Guide
Calculate chinchilla cage size for 1–6 chinchillas. Check dimensions, volume, height, platforms, and accessories with a detailed pass/fail scoring guide.
Livestock Water Calculator — Daily Water Needs by Species
Calculate daily water needs for cattle, horses, sheep, goats, pigs, and chickens. Adjust for heat, lactation, and work level to size tanks and estimate costs.
Ferret Cage Size Calculator
Ferret cage size calculator finds minimum dimensions by number of ferrets. Get recommended levels, bar spacing, accessories, and multi-ferret cage setups.
Horse Blanket Size Calculator
Horse blanket size chart and calculator by body measurement. Find the right fit and fill weight for turnout, stable, and sheet blankets by temperature range.
Dog Treat Calculator
Calculate how many treats your dog can have per day using the 10% calorie rule. Get daily treat limits by weight, homemade treat calories, and safe portions.
Cat Tree Size Calculator
Calculate the right cat tree size for your cats and space. Get platform count, sisal rope length, carpet yardage, and DIY material costs by height and cats.
Puppy Weight Predictor Calculator
Predict your puppy's adult weight by breed size, age, and gender. Accurate growth curves for toy, small, medium, large, and giant breeds with milestones.
Goat Feed Calculator
Calculate how much feed a goat needs per day by body weight and production stage. Get daily hay, grain, and mineral amounts for dairy, meat, and growing goats.
Rabbit Litter Box Calculator
Calculate the ideal litter box size and litter quantity for your rabbits. Get dimensions based on breed size and recommendations for safe litter types.
Dog Water Intake Calculator
Calculate how much water your dog needs daily based on weight, activity level, weather, and diet. Get daily ounces, cups, milliliters, and bowl refills.
Cat Calorie Calculator
Calculate your cat's daily calorie needs based on weight, age, body condition, and activity level. Get dry food cups, wet food cans, and protein targets.
Chicken Feed Calculator
Calculate how much feed your backyard chickens need daily and monthly. Get bag counts, oyster shell, grit amounts, and cost estimates by breed and age.
Horse Arena Footing Calculator
Calculate footing and base material for your horse arena. Get cubic yards, tons, truck loads, and cost estimates for sand, rubber, or synthetic footing.
Duck Pond Calculator
Calculate the ideal backyard duck pond size by flock count and breed size. Get water volume in gallons, liner dimensions, monthly usage, and pump sizing.
Pet Medication Dosage Calculator
Calculate safe OTC medication doses for dogs and cats by weight. Get Benadryl, Pepto-Bismol, fish oil, glucosamine, and hydrogen peroxide dosing guides.
Cat Water Intake Calculator
Estimate daily cat water intake based on weight, life stage, activity level, food moisture, and climate. View results in ounces, milliliters, and cups.
Reptile Substrate Calculator
Calculate reptile substrate volume, bag count, weight, top-up schedule, and cost from enclosure size, depth, and substrate type. Plan aspen to bioactive.
Aquarium Salt Dosage Calculator
Calculate aquarium salt dosage by tank size, target level, and current concentration. Get grams, tablespoons, and replacement dose after water changes.
Dog House Size Calculator
Calculate dog house interior dimensions, door opening, raised floor height, insulation needs, and bedding volume from your dog measurements and climate.
Aquarium Filter Size Calculator
Calculate recommended aquarium filter GPH, turnover rate, media volume, and maintenance interval from tank size, livestock load, filter style, and head height.
Egg Production Calculator — Estimate Eggs by Breed, Season & Age
Calculate egg production by breed, season, and hen age. Estimate daily, weekly, and annual egg output, dozens, market value, and feed cost break-even analysis.
Saltwater Mix Calculator
Calculate salt mix amounts for your marine aquarium. Enter tank volume, target salinity, and salt brand to get cups, grams, and mixing time estimates.
Aquarium Dosing Calculator
Calculate fertilizer dosing for your planted aquarium. Enter tank volume, plant load, and frequency to get per-nutrient mL amounts for N, P, K, and iron.
Aquarium Lighting Calculator
Calculate LED wattage and PAR levels for your planted aquarium. Enter tank dimensions, plant type, and photoperiod to get light recommendations and costs.
Reef Tank Calculator
Calculate calcium, alkalinity, and magnesium dosing for your reef aquarium. Enter tank volume, coral load, and current parameters to get daily 2-part amounts.
Dog Coat Size Calculator
Find the right coat or jacket size for your dog by breed and body measurements. Enter chest girth, neck circumference, and back length for a perfect fit.
Catio Size Calculator
Calculate outdoor catio dimensions, wire mesh, and lumber needed for your cat enclosure. Get detailed size and material recommendations by number of cats.
Ant Farm Size Calculator
Calculate formicarium size, substrate depth, and humidity needs by ant species and colony size. Get setup recommendations for beginner to expert keepers.
Horse Trailer Size Calculator
Calculate horse trailer size, weight capacity, and tow vehicle requirements by horse count and breed size. Get GVWR, dimensions, and towing recommendations.
Betta Fish Tank Calculator
Calculate betta fish tank setup: heater wattage, filter size, water change schedule, and plant count. Get recommendations by tank size and room temperature.
Hermit Crab Habitat Calculator
Calculate hermit crab tank size, substrate depth, and spare shell count by crab number and size. Get humidity, temperature, and full setup recommendations.
Parrot Cage Size Calculator
Calculate minimum cage dimensions and bar spacing by parrot species. Get complete setup recommendations for budgies to macaws including perches and toys.
Hedgehog Cage Size Calculator
Calculate hedgehog cage size, exercise wheel diameter, and heating pad wattage. Get habitat recommendations by cage type, hedgehog count, and temperature.
Axolotl Tank Calculator
Calculate axolotl tank volume, chiller size, and filter requirements. Get setup recommendations by axolotl count and room temperature for healthy care.
Hamster Wheel Size Calculator
Find the right exercise wheel diameter for your hamster breed. Compare Syrian, dwarf, and Roborovski hamster wheel sizes with safety recommendations guide.