For Ethical Breeders
French Bulldog DNA Calculator
Predict coat colors, patterns, and health outcomes before you breed. Make smarter, more ethical decisions for your Frenchie litters.
Start CalculatingWhy DNA Testing Matters for Frenchies
French Bulldogs carry unique genetic markers that influence everything from their iconic coat colors to critical health risks. Understanding these genes helps you breed responsibly.
Predict Colors
Know the odds of producing blue, lilac, cream, merle, and other rare Frenchie colors before pairing.
Avoid Health Risks
Screen for DM, HUU, JHC, and CMR1 to prevent producing affected puppies with serious conditions.
Ethical Pairing
Avoid dangerous combos like double merles or two carriers of the same health gene.
Buyer Confidence
Give puppy buyers accurate genetic predictions and health clearances backed by science.
How the DNA Calculator Works
A simple guide to understanding your results before you start
One Copy From Each Parent
When you breed two dogs, every puppy receives one gene copy from the mother and one from the father for every trait — color, pattern, hair type, and health.
Odds for Every Puppy
The percentages show the probability for each individual puppy. Every pup in the litter has the same odds — but nature is random, so each puppy can land on a different outcome.
Plan Smarter, Breed Better
Use these projections to predict colors and patterns, avoid risky health pairings, and make ethical breeding decisions that protect your dogs and their future puppies.
What the Results Mean
Non-Carrier
Two dominant genes. The puppy won't show or carry that trait.
Carrier
One dominant + one recessive. Won't show it, but can pass it on.
Affected
Two recessive genes. The puppy will show or express that trait.
Example:
If your result says 25% affected, 50% carrier, 25% non-carrier, that means every single puppy has a 25% chance of being affected, a 50% chance of being a carrier, and a 25% chance of being clear. Nature doesn't promise exact numbers per litter — it only promises these odds for each pup.
Select Parent Genetics
Choose each gene for your sire and dam. Hit calculate when ready.
Sire (Male)
Color Genes
Pattern Genes
Hair Type Genes
Health Genes
Dam (Female)
Color Genes
Pattern Genes
Hair Type Genes
Health Genes
Generates Punnett square probability tables for all 18 gene loci
Select genetics for both parents, then click Calculate Genetics to see projections.
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