Goat gestation calculator.
Find out when your goat is due. Enter the breeding date and the calculator estimates the due date from the average goat gestation, with the earliest and latest dates too.
Breeding date
LiveGoat gestation lasts about 145 to 155 days, averaging near 150. The due date is the breeding date plus the average gestation; the range gives the earliest and latest.
Estimated kidding date
Oct 29, 2026
based on average gestation
An estimate based on average goat gestation; individual animals vary. Not veterinary advice. Calculations run in your browser; nothing you enter is stored.
How it works
Counting from breeding
Goat gestation lasts about 145 to 155 days from breeding, about five months, with an average near 150 days. The calculator adds the average to the breeding date to estimate the due date, and the 145 to 155 day range gives the earliest and latest you should expect kids.
Dairy breeds, first fresheners and multiple kids can shift the date by a few days. Treat the due date as a window of a few days rather than a single fixed day.
Reference
Gestation by animal.
Typical pregnancy lengths for goats and other common animals, for comparison.
| Animal | Gestation |
|---|---|
| Cat | 63 to 67 days |
| Dog | 58 to 68 days |
| Cow | 279 to 287 days |
| Goat | 145 to 155 days |
| Sheep | 144 to 152 days |
| Horse | 320 to 370 days |
The full guide
The complete guide to goat gestation.
How long goats carry, the stages to expect, and when to get help.
How long are goats pregnant?
Goat gestation runs about 145 to 155 days from breeding, averaging around 150, or about five months. Counting from the breeding date gives the most reliable estimate of when kids are due.
Dairy breeds, first fresheners and multiple kids can shift the date by a few days.
Stages of pregnancy
The first month shows few signs. Through the second half the abdomen widens and the udder develops, and in the final weeks the kids can often be felt moving when the doe is resting.
A vet or an ultrasound scan can confirm pregnancy and check for multiples, which are common in goats.
Preparing for the birth
Move the doe to a clean, dry kidding pen a week or so before the due date and adjust feed for late gestation. Have clean towels and iodine for the navels ready, but most does kid without help.
A softening of the tailhead ligaments and udder filling in the final days signal that kidding is close.
When to call the vet
Call a vet if the doe passes about 155 to 158 days, strains over 30 minutes without progress, or shows distress, since multiples can sometimes present awkwardly. This tool is for planning only and does not replace veterinary care.
The formula
Date plus
gestation.
The due date is the breeding date plus about 150 days, with kids normally arriving between 145 and 155 days.
Cow gestation ›# Goat due date
due = breeding_date + gestation
goat gestation = 145 to 155 days
# average 150 days
breeding + 150 daysQuestions
Goat gestation questions.
How long is a goat pregnant?
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About 145 to 155 days from breeding, averaging around 150 days, about five months. The calculator uses this to estimate the due date.
How do I calculate a goat due date?
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Add about 150 days to the breeding date. Enter that date above and the calculator gives the estimated due date plus the earliest and latest.
Can the due date be a few days off?
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Yes. Dairy breeds, first fresheners and multiple kids can shift the date by a few days. Treat the result as a window from 145 to 155 days.
When should I contact a vet?
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Contact a vet if the pregnancy runs well past 155 days, if labour stalls without progress, or if the animal seems distressed. A prenatal check-up is always worthwhile.
Is this goat gestation calculator free?
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Yes. It is completely free with no sign-up, and every calculation runs locally in your browser, so nothing you enter is stored or sent anywhere.
About the developer
Jean Borg
Jean builds and maintains every calculator on freecalculators.pro from Malta, with a focus on tools that are fast, free and show their working. The goat gestation calculator estimates a due date from average goat gestation and is for planning, not veterinary advice.