Welcome to our whelping calculator & Labrador coat color predictor tools! Free Tools to help discover when your puppies are due and what your color cross will produce.   

With the whelping calculator, be sure to pay attention to the “Milestones” area.

As you use the coat inheritance involves more than just black yellow and chocolate. When the E B and D loci are considered together a single breeding can produce multiple possible genotypes and color outcomes.

This calculator models those genetics clearly and accurately.

By entering the known genotypes of the sire and dam you can see all possible coat color outcomes for a pairing along with their expected probabilities. Results are grouped by phenotype including traditional colors silver factored combinations and dilute expressions when applicable.

The goal is simple. Replace guesswork with clarity and help breeders make informed decisions before a breeding takes place.