Goat Gestation Calculator
Calculate when your goat is expected to kid based on the breeding date. The average goat gestation is about 150 days (roughly 5 months), but it varies by breed. Enter the breeding date and breed to get the expected kidding window.
Goat gestation averages 150 days but can range from 145 to 155 days depending on the breed, the number of kids, and individual variation. Knowing the expected kidding date helps you prepare the birthing area, adjust nutrition, and schedule veterinary checks.
Breed-specific averages:
- Nigerian Dwarf: 145 days (shortest common gestation)
- LaMancha: 149 days
- Boer, Alpine, Saanen, Toggenburg: 150 days
- Nubian: 151 days (slightly longer)
Factors that affect gestation length:
- Number of kids: Does carrying multiples (twins, triplets) often kid 1-3 days earlier than those carrying singles
- First-time vs experienced does: First fresheners sometimes carry a day or two longer
- Buck genetics: Some buck lines are associated with slightly shorter or longer gestations
- Nutrition and stress: Poor nutrition can slightly delay or advance kidding
Signs kidding is approaching (last 1-2 weeks):
- Ligaments near the tail head soften and "disappear"
- Udder becomes tight and full (bagging up)
- Discharge from the vulva
- Restlessness, pawing at the ground, nesting behavior
- Does may isolate themselves from the herd
Most goat breeders mark the breeding date and count forward 150 days, then start watching closely from day 145 onward.