Zebra Gestation Calculator
This zebra gestation calculator finds the expected due date instantly. Enter the breeding date and select the species — Plains, Mountain, or Grevy's Zebra — to calculate the gestation period and view key milestones.
Quick Answer
The gestation period for a zebra averages 375 days, ranging from 360 days (Plains Zebra) to 390 days (Grevy's Zebra). Enter the breeding date above and select the species to calculate the exact expected due date.
Zebra Gestation Calculator
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How Long Are Zebras Pregnant?
Zebras are pregnant for 375 days on average, with meaningful variation by species — Plains Zebra (the most common and widespread species) average 360 days, Mountain Zebra average 365 days, and the larger-bodied Grevy's Zebra average 390 days. This pattern, where larger species gestate longer, is consistent across the equid family and most large mammals generally.
Foal Development & Litter Size
Zebras almost always have a single foal. Foals are highly precocial, standing and able to run with the herd within about an hour of birth — an essential survival trait given the intense predation pressure zebras face on the open African savanna from lions, hyenas, and other predators.
Gestation by Zebra Species
| Species | Avg. Gestation (Days) |
|---|---|
| Plains Zebra | 360 days |
| Mountain Zebra | 365 days |
| Grevy's Zebra | 390 days |
How Zebras Compare to Horses and Donkeys
| Animal | Avg. Gestation (Days) | Vs. Zebra |
|---|---|---|
| Zebra | 375 days | — |
| Donkey | 365 days | 10 days shorter |
| Horse | 336 days | 39 days shorter |
| Cattle | 283 days | 92 days shorter |
See our horse gestation calculator and donkey gestation calculator for comparison.
How We Calculate Zebra Gestation
The zebra gestation calculator uses the formula: Due Date = Breeding Date + Average Gestation Days. Species-specific averages are derived from published wildlife biology research.
Frequently Asked Questions
Sources & References
- Merck Veterinary Manual — Equid reproduction
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Complete comparison chart
GestationCalc Editorial Team
Our editorial team includes animal husbandry specialists, veterinary consultants, and agricultural extension educators. Content is reviewed against peer-reviewed research and guidance from USDA, Penn State Extension, and the Merck Veterinary Manual.
Last reviewed: September 1, 2026