Cow Pregnancy Calculator (embed)

When will she calve?

Two quick steps.

1What do you know?

Breeding date Bull in & out Calving date

2Enter the date and breed

Breeding / AI date

Breed

More options optional: name, beef or dairy, heifer, calf sex, twins, sire EPD

Cow name or tag

Herd type

BeefDairy (adds dry-off date)

First-calf heiferabout a day shorter, and she needs longer to breed back

Calf sex, if known

Carrying twinstwins usually come 1–2 weeks early

Sire gestation EPD (days)

Or my own gestation (days)

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This calculator needs JavaScript. Quick rule: add 283 days (about 9 months and 10 days) to the breeding date, or use the cattle gestation table.

🐄Herd calving list Track several cows at once: sorted by due date, with days left and each cow’s next job.Open

No cows saved yet. Enter a cow in the calculator and press Add the cow above.

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