Animal Gestation Calculator

Horse Gestation Chart and Table

Every fifth breeding date across the year with the matching foaling date, calculated at 340 days. The normal range is 320 to 370 days, so treat each due date as the middle of a window. The page is formatted to print cleanly for a barn wall.

Horse gestation table: breeding to foaling dates

Horse breeding dates at five-day intervals with calculated foaling dates
Breeding dateExpected foaling date (340 days)
1 Jan 20267 Dec 2026
6 Jan 202612 Dec 2026
11 Jan 202617 Dec 2026
16 Jan 202622 Dec 2026
21 Jan 202627 Dec 2026
26 Jan 20261 Jan 2027
31 Jan 20266 Jan 2027
5 Feb 202611 Jan 2027
10 Feb 202616 Jan 2027
15 Feb 202621 Jan 2027
20 Feb 202626 Jan 2027
25 Feb 202631 Jan 2027
2 Mar 20265 Feb 2027
7 Mar 202610 Feb 2027
12 Mar 202615 Feb 2027
17 Mar 202620 Feb 2027
22 Mar 202625 Feb 2027
27 Mar 20262 Mar 2027
1 Apr 20267 Mar 2027
6 Apr 202612 Mar 2027
11 Apr 202617 Mar 2027
16 Apr 202622 Mar 2027
21 Apr 202627 Mar 2027
26 Apr 20261 Apr 2027
1 May 20266 Apr 2027
6 May 202611 Apr 2027
11 May 202616 Apr 2027
16 May 202621 Apr 2027
21 May 202626 Apr 2027
26 May 20261 May 2027
31 May 20266 May 2027
5 Jun 202611 May 2027
10 Jun 202616 May 2027
15 Jun 202621 May 2027
20 Jun 202626 May 2027
25 Jun 202631 May 2027
30 Jun 20265 Jun 2027
5 Jul 202610 Jun 2027
10 Jul 202615 Jun 2027
15 Jul 202620 Jun 2027
20 Jul 202625 Jun 2027
25 Jul 202630 Jun 2027
30 Jul 20265 Jul 2027
4 Aug 202610 Jul 2027
9 Aug 202615 Jul 2027
14 Aug 202620 Jul 2027
19 Aug 202625 Jul 2027
24 Aug 202630 Jul 2027
29 Aug 20264 Aug 2027
3 Sept 20269 Aug 2027
8 Sept 202614 Aug 2027
13 Sept 202619 Aug 2027
18 Sept 202624 Aug 2027
23 Sept 202629 Aug 2027
28 Sept 20263 Sept 2027
3 Oct 20268 Sept 2027
8 Oct 202613 Sept 2027
13 Oct 202618 Sept 2027
18 Oct 202623 Sept 2027
23 Oct 202628 Sept 2027
28 Oct 20263 Oct 2027
2 Nov 20268 Oct 2027
7 Nov 202613 Oct 2027
12 Nov 202618 Oct 2027
17 Nov 202623 Oct 2027
22 Nov 202628 Oct 2027
27 Nov 20262 Nov 2027
2 Dec 20267 Nov 2027
7 Dec 202612 Nov 2027
12 Dec 202617 Nov 2027
17 Dec 202622 Nov 2027
22 Dec 202627 Nov 2027
27 Dec 20262 Dec 2027

How to read the horse gestation chart

Find the row closest to the date the horse was served. The right-hand column is the expected foaling date at 340 days. Because normal gestation spans 320 to 370 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 horse due date

Estimated foaling date

Sunday, 4 July 2027

Earliest

14 Jun 2027

Latest

3 Aug 2027

Printable horse 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.

Horse gestation chart FAQs

More gestation pages

Livestock gestation chart