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🐄 Cattle Pregnancy Due Date Calculator

Calculate your cow’s calving date from the breeding or AI (artificial insemination) date. Average bovine gestation: 283 days.

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Cattle (Cow) Pregnancy Due Date Calculator

Average gestation: 283 days (273293 day range)
Ashok Kumar Poudel
Written by
Ashok Kumar Poudel
Health & Wellness Writer
Dr. Sharad Singh Yadav
Medically reviewed by
BVSc & AH, Chairman — Advanced Pet Hospital
Last reviewed:
Feb 2026

Cattle Gestation and Calving Guide

Cattle gestation averages 283 days, making it one of the longer domestic animal pregnancies at approximately 9.5 months. Accurate calving date prediction is essential for farm management — it allows you to plan nutritional adjustments, prepare calving facilities, arrange veterinary care, and ensure proper observation during the calving period.

Whether you bred your cow through natural service or artificial insemination (AI), simply enter the breeding date and our cattle pregnancy calculator will provide the expected calving date along with the earliest and latest possible dates based on the 273–293 day range.

Gestation by Breed

Holstein
279–281 days
Angus
281–285 days
Hereford
283–285 days
Charolais
287–292 days
Simmental
285–290 days
Limousin
287–291 days

Frequently Asked Questions

Common questions answered by our medical team

Cattle have an average gestation of 283 days (approximately 9.5 months), with a normal range of 273–293 days. Beef breeds (Angus, Hereford) tend toward slightly longer gestations than dairy breeds (Holstein).
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