Free Cattle Gestation Calculator
Cow & Buffalo Calving Date Calculator
Enter the breeding or AI date and instantly get the expected calving date, pregnancy check date and dry-off date — for cows (283 days) and buffaloes (310 days).
Calculate Expected Calving Date
Key Dates
Select the animal type, enter the breeding or AI date, and press calculate to see the expected calving date, pregnancy check date and dry-off date.
Cattle Pregnancy & Calving FAQs
What is the gestation period of a cow?
A cow's gestation period is approximately 283 days (about 9 months and 10 days) from the date of successful breeding or artificial insemination. It can vary by a few days depending on breed and individual animal.
What is the gestation period of a buffalo?
A buffalo's gestation period is approximately 310 days (about 10 months and 10 days) — roughly one month longer than a cow's.
When should pregnancy be confirmed after AI?
Pregnancy diagnosis is typically done 45–60 days after insemination, by a veterinarian via rectal palpation or ultrasound. Early confirmation lets you rebreed quickly if the AI did not succeed.
What is the dry-off date and why does it matter?
Dry-off means stopping milking about 60 days before expected calving. This rest period lets the cow's udder recover and supports a healthy calf and strong next lactation.
Track Breeding for Your Whole Herd Automatically
Livestock OS records every heat, AI and pregnancy — and reminds you before every calving and dry-off. Free during early access.