Cat due date calculator

Cats carry for about 63 to 65 days, and kittens usually arrive between day 61 and day 69 after mating.

When is my cat due?

A cat bred today (October 4, 2026) is due around December 8, 2026, between December 4 and December 12, 2026.

Start from the breeding date. Use the date of mating. If the cat was bred more than once, use the last date.
Add 65 days. The average cat carries for about 65 days, so the due date is 65 days after breeding.
Mark the normal window. Most kittening happens between day 61 and day 69, so watch from day 61 and call your vet if nothing has happened by day 69.

About 63 to 65 days, usually between day 61 and day 69 after mating.

Around three weeks after mating the nipples pink up and enlarge; a vet can confirm with ultrasound from about day 16 or by feeling the abdomen.

Nesting, restlessness, loud purring or calling and a drop in appetite are common in the last day or two.

The figures are standard published ranges; individual animals vary, so confirm with your veterinarian.