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Calculators
Biology Calculators
Animal Pregnancy Calculators
Cow Gestation Calculator

Cow Gestation Calculator: Estimate Calving Date

Estimate cow calving date.

Pregnancy Details for Cow

Species Mode

Cow Selection

Estimated Due Date
December 20, 2026
Mated: Mar 12
Cow Gestation
282
Days to Go
Pregnancy Progress
0%
First Trimester
Mar 12
Second Trimester
Jun 15
Third Trimester
Sep 18

Clinical Milestone Feed

Pregnancy Diagnosis

Apr 11 - Apr 16, 2026

Ultrasound or blood test confirmation recommended.

Fetal Heartbeat

Apr 26, 2026

Can be detected through ultrasound examination.

Gender Identification

May 16 - May 31, 2026

Vet can often determine calf gender via ultrasound.

Dry Off Period

Oct 18 - Oct 28, 2026

Stop milking to allow the cow to recover for the next lactation.

Calving Prep

Dec 12, 2026

Move to a clean, comfortable maternity pen.

Species Quick Facts
Avg. Litter Size
1 calf
Birth Weight
60-100 lbs
Total Duration
283 Days
Clinical Range
MinDec 16
MaxDec 29
"Veterinary Advice"

Always consult with a qualified veterinarian specializing in cow health. This timeline is an educational estimate and biological variance is common.

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About Cow Gestation Calculator

The Cow Gestation Calculator is an essential tool designed for cattle farmers, ranchers, and breeders to accurately estimate the calving date for their cows. By simply inputting the breeding date, this calculator quickly computes the expected delivery date based on an average gestation period of approximately 283 days. This precise estimation empowers livestock managers to plan effectively for the upcoming calving season. It aids in timely preparation of calving facilities, ensures adequate nutritional support for the cow, and optimizes resource allocation. This invaluable planning capability helps reduce stress, improve welfare, and ultimately contribute to successful herd management and productivity.

Next Steps
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