Hamster Gestation Chart and Table
Every fifth breeding date across the year with the matching birthing date, calculated at 16 days. The normal range is 15 to 18 days, so treat each due date as the middle of a window. The page is formatted to print cleanly for a barn wall.
Hamster gestation table: breeding to birthing dates
| Breeding date | Expected birthing date (16 days) |
|---|---|
| 1 Jan 2026 | 17 Jan 2026 |
| 6 Jan 2026 | 22 Jan 2026 |
| 11 Jan 2026 | 27 Jan 2026 |
| 16 Jan 2026 | 1 Feb 2026 |
| 21 Jan 2026 | 6 Feb 2026 |
| 26 Jan 2026 | 11 Feb 2026 |
| 31 Jan 2026 | 16 Feb 2026 |
| 5 Feb 2026 | 21 Feb 2026 |
| 10 Feb 2026 | 26 Feb 2026 |
| 15 Feb 2026 | 3 Mar 2026 |
| 20 Feb 2026 | 8 Mar 2026 |
| 25 Feb 2026 | 13 Mar 2026 |
| 2 Mar 2026 | 18 Mar 2026 |
| 7 Mar 2026 | 23 Mar 2026 |
| 12 Mar 2026 | 28 Mar 2026 |
| 17 Mar 2026 | 2 Apr 2026 |
| 22 Mar 2026 | 7 Apr 2026 |
| 27 Mar 2026 | 12 Apr 2026 |
| 1 Apr 2026 | 17 Apr 2026 |
| 6 Apr 2026 | 22 Apr 2026 |
| 11 Apr 2026 | 27 Apr 2026 |
| 16 Apr 2026 | 2 May 2026 |
| 21 Apr 2026 | 7 May 2026 |
| 26 Apr 2026 | 12 May 2026 |
| 1 May 2026 | 17 May 2026 |
| 6 May 2026 | 22 May 2026 |
| 11 May 2026 | 27 May 2026 |
| 16 May 2026 | 1 Jun 2026 |
| 21 May 2026 | 6 Jun 2026 |
| 26 May 2026 | 11 Jun 2026 |
| 31 May 2026 | 16 Jun 2026 |
| 5 Jun 2026 | 21 Jun 2026 |
| 10 Jun 2026 | 26 Jun 2026 |
| 15 Jun 2026 | 1 Jul 2026 |
| 20 Jun 2026 | 6 Jul 2026 |
| 25 Jun 2026 | 11 Jul 2026 |
| 30 Jun 2026 | 16 Jul 2026 |
| 5 Jul 2026 | 21 Jul 2026 |
| 10 Jul 2026 | 26 Jul 2026 |
| 15 Jul 2026 | 31 Jul 2026 |
| 20 Jul 2026 | 5 Aug 2026 |
| 25 Jul 2026 | 10 Aug 2026 |
| 30 Jul 2026 | 15 Aug 2026 |
| 4 Aug 2026 | 20 Aug 2026 |
| 9 Aug 2026 | 25 Aug 2026 |
| 14 Aug 2026 | 30 Aug 2026 |
| 19 Aug 2026 | 4 Sept 2026 |
| 24 Aug 2026 | 9 Sept 2026 |
| 29 Aug 2026 | 14 Sept 2026 |
| 3 Sept 2026 | 19 Sept 2026 |
| 8 Sept 2026 | 24 Sept 2026 |
| 13 Sept 2026 | 29 Sept 2026 |
| 18 Sept 2026 | 4 Oct 2026 |
| 23 Sept 2026 | 9 Oct 2026 |
| 28 Sept 2026 | 14 Oct 2026 |
| 3 Oct 2026 | 19 Oct 2026 |
| 8 Oct 2026 | 24 Oct 2026 |
| 13 Oct 2026 | 29 Oct 2026 |
| 18 Oct 2026 | 3 Nov 2026 |
| 23 Oct 2026 | 8 Nov 2026 |
| 28 Oct 2026 | 13 Nov 2026 |
| 2 Nov 2026 | 18 Nov 2026 |
| 7 Nov 2026 | 23 Nov 2026 |
| 12 Nov 2026 | 28 Nov 2026 |
| 17 Nov 2026 | 3 Dec 2026 |
| 22 Nov 2026 | 8 Dec 2026 |
| 27 Nov 2026 | 13 Dec 2026 |
| 2 Dec 2026 | 18 Dec 2026 |
| 7 Dec 2026 | 23 Dec 2026 |
| 12 Dec 2026 | 28 Dec 2026 |
| 17 Dec 2026 | 2 Jan 2027 |
| 22 Dec 2026 | 7 Jan 2027 |
| 27 Dec 2026 | 12 Jan 2027 |
How to read the hamster gestation chart
Find the row closest to the date the hamster was served. The right-hand column is the expected birthing date at 16 days. Because normal gestation spans 15 to 18 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 hamster due date
Estimated birthing date
Friday, 2 October 2026
Earliest
1 Oct 2026
Latest
4 Oct 2026
Hamster gestation length by breed
| Breed | Average days |
|---|---|
| Syrian (golden) | 16 |
| Chinese | 21 |
| Campbell's dwarf | 19 |
| Winter white dwarf | 20 |
| Roborovski | 23 |
Printable hamster 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.
Hamster gestation chart FAQs
How long is a hamster pregnant?
A Syrian hamster is pregnant for about 16 days, one of the shortest gestations of any mammal. Dwarf species take longer: Campbell's 19 to 20 days, Chinese about 21 and Roborovski 23 to 24.
Which hamster species has the longest pregnancy?
The Roborovski, at roughly 23 to 24 days — a full week longer than a Syrian. Because the species differ this much, always use the figure for your own hamster rather than a generic hamster due date.
Can I handle the pups after they are born?
No, not for at least the first week to ten days, and do not clean the cage for around two weeks. Disturbing a hamster nest is the most common reason a mother abandons or eats her litter. Refill food and water quietly and otherwise leave her completely alone.
Do I need to remove the male hamster?
Yes, immediately after mating. Syrians are solitary and will fight, and with dwarf species the female can conceive again within a day of giving birth, so leaving the male in causes back-to-back litters that ruin her health.
When should the pups be separated?
By four to five weeks, split into same-sex groups. Hamsters can breed from around four weeks old, so leaving a litter together past five weeks routinely produces accidental pregnancies in animals far too young.
How can I tell if a hamster is pregnant at all?
Watch her weight and shape from about day 8 to 10, look for heavy food hoarding, prominent nipples and nest building, and expect defensiveness. Because the whole pregnancy lasts just over two weeks, if you suspect it, prepare the cage straight away rather than waiting for certainty.