๐Ÿงฌ 660+ Free Science-Backed Pet Calculators

Find the Right Calculator for Your Dog & Cat

660+ free, veterinary-verified calculators for coat color genetics, breeding gestation, adult weight, daily calories, medication dosages, and toxicity triage. No sign-up required. Instant results.

Flagship Breeding Matrices

World-Class Coat Color Genetics Engines

Calculates whole-litter Mendelian phenotype probabilities with scientific accuracy. 100% Free for breeders and pet owners.

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8-Loci Canine Matrix

Dog Coat Color Genetics Calculator

Calculates whole-litter puppy colors from sire & dam DNA across 8 loci (A, B, co, D, E, K, M, S, L). Predicts rare colors: Isabella, Lilac Merle, New Shade Isabella, Platinum, and Fluffy longhair with lethal Double-Merle interception.

A (ay/at/a) B (B/b) co (Cocoa) D (Dilute) E (Mask/Cream) M (Merle) L (Fluffy)
Launch Free Dog Color Calculator โ†’
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10-Loci Sex-Linked Matrix

Cat Coat Color Genetics Calculator

The world's only dedicated X-chromosome sex-linked cat genetics calculator! Accurately segregates male kitten colors vs female kitten colors (Calico/Tortoiseshell females vs Red/Black males). Custom presets for British Shorthair (ny12/ny11), Bengal (Snow, Charcoal), and Ragdoll.

O (Sex-Linked Red) B (Black/Choc/Cin) D (Dilute) C (Colorpoint) I (Silver/Smoke) A (Agouti)
Launch Free Cat Color Calculator โ†’
Most Popular Calculators

Tools Pet Parents & Breeders Love

Fast, science-backed formulas you can count on every single day.

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Flagship 8-Loci

Dog Coat Color Genetics Calculator

100% Free 8-locus Mendelian canine genetics calculator. Input sire & dam DNA test results (A, B, co, D, E, K, M, S, L) to calculate whole-litter puppy colors, Isabella, Lilac Merle, Platinum, Fluffy longhair, and carrier frequencies.

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World-First 10-Loci

Cat Coat Color Genetics Calculator

World-first 10-locus sex-linked feline coat color calculator. Differentiate male and female kitten colors across Orange (O), Black/Cinnamon (B), Dilute (D), Agouti (A), Colorpoint (C), Silver (I), and White Spotting (S).

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63 Days Canine

Dog Pregnancy & Gestation Calculator

Calculate your dog's whelping due date, ultrasound confirmation window, skeleton calcification x-ray dates, and whelping box preparation schedule.

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65 Days Feline

Cat Pregnancy & Queening Calculator

Calculate queen queening due date, fetal palpation window, nesting box timing, and rectal temperature drop countdown.

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Wright's COI

Dog & Cat Inbreeding COI Calculator

Sewall Wright's Coefficient of Inbreeding (COI) calculator for planned canine and feline matings up to 5 generations.

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Growth Curve

Puppy Adult Weight Growth Predictor

Predict your puppy's adult mature weight from current age in weeks and weight using veterinary logarithmic growth curves.

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Feline Growth

Kitten Adult Weight Growth Predictor

Predict mature adult cat weight from kitten weight at 4 to 24 weeks. Covers domestic cats and giant breeds like Maine Coons.

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80/10/10 Ratio

BARF Raw Diet & 80/10/10 Ratio Calculator

Calculate biologically appropriate raw food daily portions: 80% muscle meat, 10% raw edible bone, 5% liver, and 5% secreting organs.

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WSAVA Formula

Pet Calorie (RER & MER) Calculator

Calculate Resting Energy Requirement (RER = 70 * BW^0.75) and Maintenance Energy Requirement (MER) for dogs and cats.

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Emergency Triage

Emergency Pet Chocolate Toxicity Calculator

Calculate theobromine toxicity dosage (mg/kg) based on chocolate type and pet weight to determine medical urgency.

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Epigenetic Model

Dog & Cat Age in Human Years Calculator

Convert pet chronological age to human equivalent years using modern DNA methylation and size-adjusted formulas.

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Breeder ROI

Litter Profitability & Stud Fee ROI Calculator

Model litter revenue against stud fees, c-section reserves, whelping supplies, genetic tests, and vaccinations.

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French Bulldog Growth

French Bulldog Puppy Weight Calculator

Track and predict your French Bulldog puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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French Bulldog Nutrition

French Bulldog Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a French Bulldog based on weight, activity, and life stage.

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French Bulldog Age

French Bulldog Age in Human Years Calculator

Convert your French Bulldog's age into human years using breed-specific size and life expectancy logarithmic formulas.

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French Bulldog Genetics

French Bulldog Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for French Bulldog breeders. Predicts all coat variations, markings, and carrier states.

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German Shepherd Growth

German Shepherd Puppy Weight Calculator

Track and predict your German Shepherd puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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German Shepherd Nutrition

German Shepherd Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a German Shepherd based on weight, activity, and life stage.

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German Shepherd Age

German Shepherd Age in Human Years Calculator

Convert your German Shepherd's age into human years using breed-specific size and life expectancy logarithmic formulas.

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German Shepherd Genetics

German Shepherd Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for German Shepherd breeders. Predicts all coat variations, markings, and carrier states.

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Golden Retriever Growth

Golden Retriever Puppy Weight Calculator

Track and predict your Golden Retriever puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Golden Retriever Nutrition

Golden Retriever Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Golden Retriever based on weight, activity, and life stage.

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Golden Retriever Age

Golden Retriever Age in Human Years Calculator

Convert your Golden Retriever's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Golden Retriever Genetics

Golden Retriever Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Golden Retriever breeders. Predicts all coat variations, markings, and carrier states.

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Labrador Retriever Growth

Labrador Retriever Puppy Weight Calculator

Track and predict your Labrador Retriever puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Labrador Retriever Nutrition

Labrador Retriever Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Labrador Retriever based on weight, activity, and life stage.

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Labrador Retriever Age

Labrador Retriever Age in Human Years Calculator

Convert your Labrador Retriever's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Labrador Retriever Genetics

Labrador Retriever Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Labrador Retriever breeders. Predicts all coat variations, markings, and carrier states.

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Poodle Growth

Poodle Puppy Weight Calculator

Track and predict your Poodle puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Poodle Nutrition

Poodle Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Poodle based on weight, activity, and life stage.

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Poodle Age

Poodle Age in Human Years Calculator

Convert your Poodle's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Poodle Genetics

Poodle Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Poodle breeders. Predicts all coat variations, markings, and carrier states.

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American Bully Growth

American Bully Puppy Weight Calculator

Track and predict your American Bully puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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American Bully Nutrition

American Bully Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a American Bully based on weight, activity, and life stage.

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American Bully Age

American Bully Age in Human Years Calculator

Convert your American Bully's age into human years using breed-specific size and life expectancy logarithmic formulas.

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American Bully Genetics

American Bully Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for American Bully breeders. Predicts all coat variations, markings, and carrier states.

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Dachshund Growth

Dachshund Puppy Weight Calculator

Track and predict your Dachshund puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Dachshund Nutrition

Dachshund Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Dachshund based on weight, activity, and life stage.

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Dachshund Age

Dachshund Age in Human Years Calculator

Convert your Dachshund's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Dachshund Genetics

Dachshund Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Dachshund breeders. Predicts all coat variations, markings, and carrier states.

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Beagle Growth

Beagle Puppy Weight Calculator

Track and predict your Beagle puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Beagle Nutrition

Beagle Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Beagle based on weight, activity, and life stage.

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Beagle Age

Beagle Age in Human Years Calculator

Convert your Beagle's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Beagle Genetics

Beagle Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Beagle breeders. Predicts all coat variations, markings, and carrier states.

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Rottweiler Growth

Rottweiler Puppy Weight Calculator

Track and predict your Rottweiler puppy's adult weight milestone curve from 4 to 52 weeks based on standard breed growth velocity.

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Rottweiler Nutrition

Rottweiler Daily Calorie Calculator

Calculate the exact daily caloric intake and feeding grams for a Rottweiler based on weight, activity, and life stage.

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Rottweiler Age

Rottweiler Age in Human Years Calculator

Convert your Rottweiler's age into human years using breed-specific size and life expectancy logarithmic formulas.

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Rottweiler Genetics

Rottweiler Coat Color Genetics Calculator

Dedicated Mendelian coat color genetics calculator for Rottweiler breeders. Predicts all coat variations, markings, and carrier states.

Browse All 660+ Free Calculators โ†’
Veterinary Science

Built on Real Veterinary Equations

No guesswork or random estimations. Every tool runs authentic biological algorithms.

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Mendelian Genetics

Combinatorial Punnett calculations matching UC Davis VGL and Embark testing standards across 8 canine and 10 feline loci.

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Pharmacological Dosing

Strict weight-adjusted mg/kg dosing algorithms verified against Plumb's Veterinary Drug Handbook for over 110 medications.

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AKC & TICA Growth Curves

Logarithmic growth velocity curves modeling adult mature weights across 35+ dog breeds and 18+ cat breeds.

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100% Completely Free

Zero paywalls, no paid reports, and no credit card required. Free printable DNA certifications for all breeders and owners.

Peer-Reviewed Scientific Authority

Anchored in Gold-Standard Veterinary Literature

Every formula, drug dosage algorithm, and genetics matrix on PetGeneticsPro is derived directly from peer-reviewed veterinary pharmacopeias, WSAVA guidelines, and university genomics standards.

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Small Animal Pharmacology

Plumb's 9th Edition & FDA CVM

Allometric weight-adjusted mg/kg dosing algorithms, constant rate infusions (CRI), and ASPCA APCC toxicology thresholds benchmarked to peer-reviewed veterinary formularies.

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Pediatric Growth & Nutrition

WSAVA Guidelines & Waltham Curves

Waltham non-linear Gompertz growth trajectories, Kleiber's Law allometric calorie scaling (70 ร— BW^0.75), and size-calibrated gestation due date calendars.

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Mammalian Population Genomics

UC Davis VGL & Wright's COI Math

Multi-locus Mendelian Punnett matrices with epistatic overriding rules, Sewall Wright's path analysis inbreeding coefficient, and lethal double-merle screening.

๐Ÿ“œ Transparent 4-Stage Literature Verification & Zero-Fabrication Policy
About Our Research Project โ†’ ยท Read Editorial Standards โ†’
Help & FAQ

Common Questions

Are all 660+ calculators really 100% free?
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Yes, absolutely. All 660+ calculators โ€” including the multi-locus dog coat color calculator, cat coat color calculator, pregnancy timelines, and printable certificate PDF reports โ€” are completely free to use with no account registration or payment required.
How do you calculate feline coat colors?
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Feline coat color genetics is unique because the Orange gene (O) is sex-linked on the X chromosome. Our calculator models this chromosomal segregation, calculating male kittens (XY) and female kittens (XX) independently to accurately predict Tortoiseshell, Calico, and gender-specific color ratios.
Can I print an official DNA report certificate for my litter?
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Yes! You can instantly generate and print a free high-resolution 8-locus canine or 10-locus feline DNA certification report to share with buyers or document in kennel pedigree records.