Sheep Gestation Chart and Table
Every fifth breeding date across the year with the matching lambing date, calculated at 147 days. The normal range is 144 to 152 days, so treat each due date as the middle of a window. The page is formatted to print cleanly for a barn wall.
Sheep gestation table: breeding to lambing dates
| Breeding date | Expected lambing date (147 days) |
|---|---|
| 1 Jan 2026 | 28 May 2026 |
| 6 Jan 2026 | 2 Jun 2026 |
| 11 Jan 2026 | 7 Jun 2026 |
| 16 Jan 2026 | 12 Jun 2026 |
| 21 Jan 2026 | 17 Jun 2026 |
| 26 Jan 2026 | 22 Jun 2026 |
| 31 Jan 2026 | 27 Jun 2026 |
| 5 Feb 2026 | 2 Jul 2026 |
| 10 Feb 2026 | 7 Jul 2026 |
| 15 Feb 2026 | 12 Jul 2026 |
| 20 Feb 2026 | 17 Jul 2026 |
| 25 Feb 2026 | 22 Jul 2026 |
| 2 Mar 2026 | 27 Jul 2026 |
| 7 Mar 2026 | 1 Aug 2026 |
| 12 Mar 2026 | 6 Aug 2026 |
| 17 Mar 2026 | 11 Aug 2026 |
| 22 Mar 2026 | 16 Aug 2026 |
| 27 Mar 2026 | 21 Aug 2026 |
| 1 Apr 2026 | 26 Aug 2026 |
| 6 Apr 2026 | 31 Aug 2026 |
| 11 Apr 2026 | 5 Sept 2026 |
| 16 Apr 2026 | 10 Sept 2026 |
| 21 Apr 2026 | 15 Sept 2026 |
| 26 Apr 2026 | 20 Sept 2026 |
| 1 May 2026 | 25 Sept 2026 |
| 6 May 2026 | 30 Sept 2026 |
| 11 May 2026 | 5 Oct 2026 |
| 16 May 2026 | 10 Oct 2026 |
| 21 May 2026 | 15 Oct 2026 |
| 26 May 2026 | 20 Oct 2026 |
| 31 May 2026 | 25 Oct 2026 |
| 5 Jun 2026 | 30 Oct 2026 |
| 10 Jun 2026 | 4 Nov 2026 |
| 15 Jun 2026 | 9 Nov 2026 |
| 20 Jun 2026 | 14 Nov 2026 |
| 25 Jun 2026 | 19 Nov 2026 |
| 30 Jun 2026 | 24 Nov 2026 |
| 5 Jul 2026 | 29 Nov 2026 |
| 10 Jul 2026 | 4 Dec 2026 |
| 15 Jul 2026 | 9 Dec 2026 |
| 20 Jul 2026 | 14 Dec 2026 |
| 25 Jul 2026 | 19 Dec 2026 |
| 30 Jul 2026 | 24 Dec 2026 |
| 4 Aug 2026 | 29 Dec 2026 |
| 9 Aug 2026 | 3 Jan 2027 |
| 14 Aug 2026 | 8 Jan 2027 |
| 19 Aug 2026 | 13 Jan 2027 |
| 24 Aug 2026 | 18 Jan 2027 |
| 29 Aug 2026 | 23 Jan 2027 |
| 3 Sept 2026 | 28 Jan 2027 |
| 8 Sept 2026 | 2 Feb 2027 |
| 13 Sept 2026 | 7 Feb 2027 |
| 18 Sept 2026 | 12 Feb 2027 |
| 23 Sept 2026 | 17 Feb 2027 |
| 28 Sept 2026 | 22 Feb 2027 |
| 3 Oct 2026 | 27 Feb 2027 |
| 8 Oct 2026 | 4 Mar 2027 |
| 13 Oct 2026 | 9 Mar 2027 |
| 18 Oct 2026 | 14 Mar 2027 |
| 23 Oct 2026 | 19 Mar 2027 |
| 28 Oct 2026 | 24 Mar 2027 |
| 2 Nov 2026 | 29 Mar 2027 |
| 7 Nov 2026 | 3 Apr 2027 |
| 12 Nov 2026 | 8 Apr 2027 |
| 17 Nov 2026 | 13 Apr 2027 |
| 22 Nov 2026 | 18 Apr 2027 |
| 27 Nov 2026 | 23 Apr 2027 |
| 2 Dec 2026 | 28 Apr 2027 |
| 7 Dec 2026 | 3 May 2027 |
| 12 Dec 2026 | 8 May 2027 |
| 17 Dec 2026 | 13 May 2027 |
| 22 Dec 2026 | 18 May 2027 |
| 27 Dec 2026 | 23 May 2027 |
How to read the sheep gestation chart
Find the row closest to the date the sheep was served. The right-hand column is the expected lambing date at 147 days. Because normal gestation spans 144 to 152 days, plan for a window of a few days either side of that date. For a date that is not on the grid, use the calculator below.
Look up an exact sheep due date
Estimated lambing date
Sunday, 27 December 2026
Earliest
24 Dec 2026
Latest
1 Jan 2027
Printable sheep gestation calendar
The table above is formatted for paper: navigation, buttons and adverts are hidden when printed, so it comes out as a clean one-page calendar for the barn wall or breeding record.