Free breeding tools
COI calculator
No account needed. The COI calculator runs entirely in your browser. Enter three generations for each animal. Ancestors are matched by registration number, or by name.
Sire (stud)
Animal
Sire
Sire's sire
Sire's dam
Dam
Dam's sire
Dam's dam
Dam (female)
Animal
Sire
Sire's sire
Sire's dam
Dam
Dam's sire
Dam's dam