Egg incubation & hatch dates
Chicken egg hatch calculator
Chicken eggs hatch in about 21 days. Stop turning on day 18 (lockdown).
Duck egg hatch calculator
Most duck eggs hatch in about 28 days; stop turning on day 25.
Muscovy duck egg hatch calculator
Muscovy eggs take longer: about 35–37 days; stop turning on day 31.
Turkey egg hatch calculator
Turkey eggs hatch in about 28 days; stop turning on day 25.
Coturnix quail egg hatch calculator
Coturnix quail hatch in about 16–18 days (17 typical); stop turning on day 15.
Goose egg hatch calculator
Goose eggs take about 28–34 days depending on breed; stop turning on day 25.
Guinea fowl egg hatch calculator
Guinea keets hatch in about 27–28 days; stop turning on day 25.
Gestation & due dates
Goat kidding date calculator
Goats carry about 150 days (normal range ~145–155).
Sheep lambing date calculator
Sheep carry about 147 days (normal range ~144–152).
Pig farrowing date calculator
Sows carry about 114 days (3 months, 3 weeks, 3 days; ~111–117).
Cattle calving date calculator
Cows carry about 283 days (roughly 274–292, breed dependent).
Rabbit kindling date calculator
Rabbits kindle about 31 days after breeding (~28–33). Nest box around day 27–28.
Dog whelping date calculator
Dogs whelp about 63 days from ovulation; 58–68 days from breeding date.
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FAQ
How long do chicken eggs take to hatch?
About 21 days in an incubator kept near 99.5–100°F. Stop turning on day 18.
When do I stop turning eggs?
About 3 days before hatch: day 18 for chickens, day 25 for ducks, turkeys, geese and guineas, day 31 for Muscovy, day 15 for Coturnix quail.
How long is a goat pregnant?
About 150 days, usually between 145 and 155.
How long is a dog pregnant?
About 63 days from ovulation; counted from a breeding date, anywhere from about 58 to 68 days.
Are these dates exact?
No. They are averages. Temperature, humidity, egg storage, breed and litter size all shift the date. Ask your vet for animals.
About & sources
Dates count the set/breeding day as day 0. Figures are averages; real hatch and birth dates vary. Not veterinary advice.
- Mississippi State University Extension, Hatchery Management Guide (incubation periods, stop-turning days)
- Utah State University Extension, Hatching and Caring for Chicks
- Oklahoma State University Extension, Artificial Incubation
- Merck Veterinary Manual, Approximate Incubation Periods and Reproductive System in Animals (gestation)
- Gestation ranges for sheep, pig and cattle as compiled (citing NMSU, UNH and MS State Extension) at gestationchart.com — TODO: replace with direct extension citations.