Sheep Gestation Calculator
Calculate the expected lambing date based on the breeding date. Average ovine gestation is 147 days.
Formula
Due Date = Breeding Date + 147 days
- Average sheep gestation: 147 days (5 months); range 140–155.
- Begin monitoring 5 days before due date.
Bred October 1
Inputs
- Tupping (Breeding) Date: 2025-10-01
- Gestation Period: 147 days
Oct 1 + 147 days = February 25.
Frequently asked questions
How long is sheep gestation?
147 days on average (about 5 months), ranging 140–155 days.
How many lambs does a ewe have?
Usually 1–3; twins are most common. Some breeds average 2+ lambs.