Animal Pregnancy Calculators
Estimate due dates for dogs, cats, cows, horses, goats, sheep, pigs, rabbits, guinea pigs, and llamas from the mating or breeding date using average gestation periods.
All animal pregnancy calculators
Cat Pregnancy Calculator
Estimate a cat's due date and days remaining from the mating date (63–65 day gestation).
Cow Gestation Calculator
Estimate a cow's calving due date from the breeding date (~280 day gestation).
Dog Pregnancy Calculator
Estimate a dog's whelping due date and days remaining from the mating date (63 days).
Goat Gestation Calculator
Estimate a goat's kidding due date from the breeding date (~150 day gestation).
Guinea Pig Pregnancy Calculator
Estimate a guinea pig's due date from the mating date (59–72 day gestation).
Horse Gestation Calculator
Estimate a mare's foaling due date from the breeding date (~340 day gestation).
Llama Pregnancy Calculator
Estimate a llama's cria due date from the breeding date (~350 day gestation).
Rabbit Pregnancy Calculator
Estimate a rabbit's kindling due date from the mating date (~31 day gestation).
Sheep Gestation Calculator
Estimate a ewe's lambing due date from the breeding date (~147 day gestation).
Swine Gestation Calculator
Estimate a sow's farrowing due date from the breeding date (~114 day gestation).
Frequently asked questions
A:About 63 days (9 weeks) from mating. Use the Dog Pregnancy Calculator for an estimated whelping date.
A:No — they are estimates based on average gestation. Actual delivery varies; consult a veterinarian.
A:Approximately 280 days (about 9.5 months) from breeding.