Dog, cat and other animal pregnancy calculator
Calculate the likely due date of a dog, cat, rabbit, pig, sheep, goat, cow or mare from the mating date, with the birth window and which day of pregnancy she's on.
How to useWhen will the litter arrive?
Average estimate. Follow the pregnancy with a veterinarian.
Available in: 
Dog, cat and other animal pregnancy calculator: what it is for
Choose the animal and enter the mating date. The calculator shows the average due date, the normal birth window, which day of pregnancy the animal is on today and the main milestones, such as ultrasound, X-ray and nest preparation.
How to use
- Choose the animal.
- Enter the mating date.
- See the due date and the milestones.
When to use it
- Following a dog's or cat's pregnancy.
- Planning births on a farm.
- Scheduling vet visits.
Frequently asked questions
How long is a dog's pregnancy?
On average 63 days from ovulation, ranging from about 58 to 68 days counted from mating. Since sperm survive a few days, the mating date gives a window, not an exact day.
And a cat's?
About 65 days, with a normal range of 60 to 70 days. Larger litters tend to be born a little earlier.
How is pregnancy confirmed?
The vet can confirm it by ultrasound from 25 to 28 days after mating and count the puppies or kittens by X-ray from about 45 days, when the bones become visible.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.