Pets · Cats

Cat Pregnancy Calculator

Count 64 days from the mating date to estimate your queen’s due date, then follow the pregnancy week by week with the milestones that matter for kitten prep.

Mating date

Gestation length

Feline gestation averages 63–65 days from mating, with a normal range of 58–72 days. Unlike dogs, cats are induced ovulators — eggs are released in response to mating, so the mating date is a reliable start point.

Estimated due date

kittening window shown in stats—

Mating dayKittening

Days pregnant

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Pregnancy week

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Days to go

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Earliest

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day 58

Latest

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day 72

Gestation math

Due date = mating date + 64 days (range 58–72)

Cats are induced ovulators — ovulation happens within 24–50 hours of mating — which makes the estimate tighter than in dogs. Ultrasound can confirm pregnancy from about day 14–21, and an X-ray after day 45 can count the kittens.

🐱 Due date + window

See the 64-day estimate plus the realistic 58–72 day kittening band.

📈 Live progress

A progress bar tracks the pregnancy and tells you the current week.

📚 Week-by-week guide

Each week’s development milestone, from “pinking up” to nesting and labour.

💪 Queen-aware

Tailored to cats — induced ovulation, ultrasound timing and queen nesting behaviour.

Feeding a pregnant queen

Pregnant and nursing cats need up to 2× their normal calories.

Cat Food Calculator