Pet medication dosing, gestation, and animal biology calculators. Browse our free animals tools below — all calculators are instant, accurate, and require no sign-up.
Benadryl Dosage for Dogs Calculator — Calculate the safe Benadryl (diphenhydramine) dosage for your dog based on weight, formulation type, and frequency. Includes safety warnings and vet guidance.
Bird Age Calculator — Convert your bird's age to human years based on species, size, and lifespan data. Covers parrots, finches, canaries, and more with life stage mapping.
Cat Benadryl Dosage Calculator — Calculate safe Benadryl (diphenhydramine) dosage for cats by weight and formulation. Includes feline-specific warnings, side effects, and vet guidance.
Cat BMI Calculator — Calculate your cat's Body Mass Index and Body Condition Score. Assess feline obesity risk with breed-adjusted weight ranges and health recommendations.
Cat Chocolate Toxicity Calculator — Calculate chocolate toxicity risk for cats based on weight, chocolate type, and amount ingested. Includes theobromine levels, symptom timeline, and emergency guidance.
Cat Pregnancy Calculator — Calculate your cat's due date, track pregnancy milestones, and get stage-by-stage care guidance. Covers the full 63-67 day feline gestation period.
Cat Quality of Life Calculator — Assess your cat's quality of life using the veterinary HHHHHMM scale. Evaluate hurt, hunger, hydration, hygiene, happiness, mobility, and more good than bad days.
Catculator — Cat Age in Human Years — Convert your cat's age to human years with breed-adjusted calculations. Covers indoor vs outdoor cats, life stages, and health milestones.
Cattle Per Acre Calculator — Calculate stocking rate for cattle pastures based on forage type, rainfall, and herd size. Includes AUM, carrying capacity, and rotational grazing guidance.
Cephalexin for Cats Dosage Calculator — Calculate cephalexin (Keflex) dosage for cats by weight and infection type. Covers oral suspension and capsule forms with feline safety guidelines.
Cephalexin for Dogs Dosage Calculator — Calculate cephalexin dosage for dogs by weight, infection type, and formulation. Includes canine dosing charts, treatment protocols, and safety information.
Cow Gestation Calculator — Calculate cow due dates and track pregnancy stages through the 283-day bovine gestation period. Includes breed-specific timelines, milestones, and calving preparation.
Dog BMI & Body Condition Calculator — Assess your dog's body condition score (BCS), ideal weight range, and calorie needs by breed. Includes 9-point BCS scale, breed weight references, and diet recommendations.
Dog Chocolate Toxicity Calculator — Calculate the toxicity risk of chocolate ingestion in dogs based on weight, chocolate type, and amount consumed. Includes theobromine dose thresholds and emergency guidance.
Dog Heat Cycle Calculator — Track your female dog's estrus (heat) cycle stages, predict the next heat, and identify optimal breeding windows. Includes cycle timeline, signs, and management tips.
Dog Life Expectancy Calculator — Estimate your dog's life expectancy based on breed, size, weight, and lifestyle factors. Includes breed-specific data, health risk factors, and longevity optimization tips.
Dog Metacam (Meloxicam) Dosage Calculator — Calculate meloxicam (Metacam) dosage for dogs by weight. Includes initial and maintenance dose, oral suspension measurement, and safety guidelines for canine NSAID therapy.
Dog Onion Toxicity Calculator — Calculate onion and allium toxicity risk in dogs. Covers garlic, leeks, chives, and shallots with hemolytic anemia thresholds, symptom timelines, and emergency guidance.
Dog Pregnancy Calculator — Track canine pregnancy stages and calculate whelping dates. Covers the 63-day gestation, week-by-week milestones, nutrition needs, and whelping preparation for dog breeders.
Dog Quality of Life Calculator — Assess your dog's quality of life using the HHHHHMM veterinary scale. Evaluate hurt, hunger, hydration, hygiene, happiness, mobility, and more good days than bad.
Dog Raisin & Grape Toxicity Calculator — Calculate grape and raisin toxicity risk in dogs. Assess kidney damage potential by weight and amount consumed. Includes symptom timeline and emergency action guidelines.
Fish Oil Dosage for Cats Calculator — Calculate proper omega-3 fish oil dosage for cats by weight and health condition. Covers EPA/DHA ratios, supplement forms, and veterinary dosing guidelines.
Goat Gestation Calculator — Calculate goat due dates and track pregnancy milestones across dairy, meat, and miniature breeds. Covers 145-155 day gestation with breed-specific timelines.
Guinea Pig Age Calculator — Convert guinea pig age to human years and learn about their life stages. Covers lifespan by breed, aging milestones, and senior guinea pig care.
Guinea Pig Pregnancy Calculator — Track guinea pig (cavy) pregnancy with due date prediction and week-by-week milestones. Covers the 59-72 day gestation, pup development, nutrition, and breeding safety.
Hamster Age Calculator — Convert hamster age to human years and understand life stages. Covers lifespan by species, aging milestones, and senior hamster care guidelines.
Horse Gestation Calculator — Calculate equine foaling dates and track pregnancy milestones by breed. Covers the 320-370 day gestation with veterinary checkpoints and foaling preparation.
Horse Weight Calculator — Estimate horse weight using heart girth and body length measurements. Covers weight tapes, condition scoring, and ideal weight ranges by breed.
How Big Will My Cat Get Calculator — Predict your cat's adult size using current age, weight, breed, and growth patterns. Covers growth curves, breed weight ranges, and kitten development milestones.
Metacam Dosage for Cats Calculator — Calculate meloxicam (Metacam) dosing for cats. Covers feline-specific safety protocols, chronic pain management, CKD considerations, and monitoring schedules.
Omega-3 for Dogs Calculator — Calculate EPA/DHA fish oil dosing for dogs by weight and health condition. Covers skin, joint, heart, kidney, and cognitive support with product comparisons.
Rabbit Cage Size Calculator — Calculate minimum enclosure size for rabbits by breed, number of rabbits, and housing type. Covers indoor cages, hutches, x-pens, and free-roam setups.
Rabbit Color Genetics Calculator — Predict rabbit kit coat colors from parent genotypes. Covers A, B, C, D, E loci, dilute, extension, and common breed color patterns.
Rabbit Gestation Calculator — Calculate rabbit due dates with breed-specific gestation periods, kindle preparation timelines, and development milestones from breeding to weaning.
Raw Dog Food Calculator — Calculate raw feeding portions for dogs by weight, age, and activity level. Covers BARF and PMR ratios with protein/bone/organ/vegetable breakdowns.
Sheep Gestation Calculator — Calculate sheep lambing dates by breed with 145-155 day gestation periods, flushing schedules, shearing timing, and lamb development milestones.
Swine Gestation Calculator — Calculate pig farrowing dates by breed with 112-120 day gestation periods, farrowing crate timing, neonatal care milestones, and weaning schedules.
Cost of Owning a Dog Calculator — Estimate the lifetime cost of dog ownership including food, vet care, grooming, insurance, training, and supplies by breed size and lifestyle.
Tramadol Dosage for Dogs Calculator — Calculate tramadol pain medication doses for dogs by weight, condition severity, and formulation with safety limits, interaction warnings, and tapering schedules.