Sheep Gestation Calculator

Enter the breeding date to calculate the expected lambing date. Sheep pregnancy averages 147 days (5 months).

Lambing Date
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Earliest (Day 142)—
Expected (Day 147)—
Latest (Day 152)—

Sheep Gestation Period

Sheep pregnancy averages 147 days (approximately 5 months). Range is 142-152 days depending on breed. Merinos average 150 days; Dorpers average 145 days.

BreedGestation (days)
Merino148-152
Suffolk144-148
Dorper143-147
Hampshire145-149
Katahdin145-150