Goat Gestation Calculator estimates a doe kidding due date by adding the gestation period to the breeding date, using 150 days for standard breeds and 145 days for miniature breeds. Beyond the due date it generates a 145-155 day kidding window, a CDT vaccine reminder and a full management timeline with a day-by-day progress view you can print or add to your calendar. Covering 17 breeds across meat, dairy, fiber and miniature groups, it runs in the browser with no account and lets you override the gestation length manually.
⚡ Calculators💵 Free: no account or install📅 Listed 10 Jun 2026
Our take
A free goat gestation calculator producing kidding due dates and a management timeline, no account or install. It is a practical livestock tool rather than an AI product: goat gestation averages around 150 days with breed variation, and the timeline of what to do when is more useful than the date itself.
Worth it if
Smallholders and goat keepers planning kidding dates and preparation schedules.
Look elsewhere if
Veterinary diagnosis — a calculator estimates timing, it does not assess the animal.
✨ Features
Breed-Aware Due Dates
Uses 150 or 145 day gestation for standard and miniature breeds.
Kidding Window
Generates a realistic 145-155 day range around the due date.
Management Timeline
Get a day-by-day plan with a CDT vaccine reminder you can print.
17 Breeds
Covers meat, dairy, fiber and miniature breed groups.
It is a central estimate around an average of roughly 150 days, with normal variation of several days either side and differences between breeds — dairy breeds often kid slightly earlier than meat breeds. Treat it as the middle of a window for preparation rather than a date to expect precisely.
What should the timeline actually prompt?
The practical preparations: adjusting nutrition in late gestation, vaccination timing, preparing a clean kidding area, and knowing the signs of impending labour. The date matters less than being ready a week before it, since kidding early is considerably more common than being caught out by a late one.