Cat pregnancy calculator
Enter the date your cat was bred to see when the kittens are most likely to arrive and when a vet can confirm the pregnancy. Pregnancy in cats lasts about 60 to 65 days, and birth typically comes 64 to 66 days after breeding.
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- Days to go
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- Pregnancy length
- 60 to 65 days
Cat pregnancy timeline
| Milestone | Days after breeding | Date |
|---|---|---|
| Vet can confirm pregnancy (palpation or ultrasound) | 21 to 30 | — |
| X-ray can show the kittens | about 55 and later | — |
| Typical birth | 64 to 66 | — |
| Full range of pregnancy length | 60 to 65 | — |
Birth timing is not always known exactly, because the breeding date may not be the conception date. A cat can ovulate and conceive a day or more after mating.
What to do next
- Book a vet visit to confirm the pregnancy. A vet can do this by feeling the abdomen or by ultrasound about 21 to 30 days after breeding.
- Ask your vet about feeding during pregnancy. Nursing and pregnant cats need more food. See how much to feed a cat and the cat calorie calculator.
- Ask for an X-ray late in pregnancy if you want to know how many kittens to expect.
- Contact your vet at once if the cat is in obvious distress, strains without producing a kitten, or goes past the expected window.
Questions
How long is a cat pregnant?
Pregnancy in cats lasts 60 to 65 days, and birth typically comes 64 to 66 days after breeding, according to the Merck Veterinary Manual.
How can I tell if my cat is pregnant?
A vet can confirm pregnancy by feeling the abdomen or by ultrasound about 21 to 30 days after breeding. Do not rely on signs at home.
When can an X-ray count the kittens?
X-rays taken toward the end of pregnancy, from about day 55 after breeding, can show how many kittens to expect.
How accurate is the due date?
It is an estimate from the breeding date. Because the breeding date may not match conception, the real date can move by a few days.
Can a cat get pregnant again right after giving birth?
Ask your vet about spaying and about timing, because cats can become fertile again soon after a litter.
What about dogs?
See the dog pregnancy calculator.
Sources
- Merck Veterinary Manual, Pet Owner Version, "Management of Reproduction of Cats" (pregnancy 60 to 65 days, birth typically 64 to 66 days after breeding, detection by day 21 to 30, X-ray toward the end of pregnancy).
- Merck Veterinary Manual, Professional Version, Davidson A.P., "Breeding Management of Queens" (evaluation by abdominal palpation and ultrasonography 21 to 30 days after breeding).
Last reviewed 2026-10-26. This page is general information and not veterinary advice.