Goat Gestation Calculator

How to use the goat gestation calculator

1. 1. Choose what you know. Enter the breeding date to get a due date, or switch to the target due date mode to work backwards to the breeding date you need.
2. 2. Refine the inputs. The calculator uses the 150-day average for this species.
3. 3. Plan around the range. Use the earliest and latest dates and the milestone timeline to schedule checks, feed changes and preparation of the kidding area.

How long is a goat's gestation period?

The average is 150 days from breeding to kidding, about 4 months and 4 weeks. Anything between 145 and 155 days is normal, and a typical litter is 1-3 kids. Treat the calculated date as the middle of that window rather than a fixed appointment.

Goat gestation table: breeding date to kidding date

Breeding dates one week apart with the matching kidding date at 150 days.

Working backwards from a target kidding date

If you want kids on the ground in a particular week, switch the calculator to target date mode and enter the date you are aiming for. It subtracts 150 days to give the breeding date to book, plus the earliest and latest service dates that still land inside your window.