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Chicken Egg Incubation Calculator

Type the day your eggs go in. Get the hatch day, the days to candle, and the day to stop turning.

1Date

Which date you know

2Incubator

Kind of incubator

Hatch day

November 19, 2026Thursday

  • 21days to hatch
  • Nov 16stop turning
  • 21days to go
  • Your chicks should hatch on Thursday, November 19, 2026. That is 21 days after the eggs go in.
  • Candle the eggs between Nov 2 and Nov 5. Check again between Nov 12 and Nov 14.
  • Stop turning the eggs on Nov 16 (day 18). Raise the humidity that day. Open the vents more too.
  • Illinois Extension stops one day sooner, after day 17.
  • Keep a forced-air incubator at 100 °F. Do not let it move more than 1 °F in all.
  • Humidity: 85 to 87 °F on a wet-bulb thermometer (about 54% to 59% at 100 °F). For the last days, 90 °F (about 68%).
  • Today is day 0. 21 days to go.
Hatch Nov 19Answer

Your hatch calendar

Day 1 is the day after the eggs go in.

    Incubation chart by bird

    For a fan (forced-air) incubator. Hatch dates are for eggs set on October 29, 2026. Humidity is on a wet-bulb thermometer.

    BirdDaysKentucky saysHeatHumidityLast daysStop turning afterHatch
    Chicken21 days21 days 100 °F37.8 °C85 to 87 °F29.4 to 30.6 °C 90 °F32.2 °Cday 18 Nov 19
    Turkey28 days28 days 99 °F37.2 °C84 to 86 °F28.9 to 30.0 °C 90 °F32.2 °Cday 25 Nov 26
    Duck28 days28 days 100 °F37.8 °C85 to 86 °F29.4 to 30.0 °C 90 °F32.2 °Cday 25 Nov 26
    Muscovy duck35 to 37 days35 days 100 °F37.8 °C85 to 86 °F29.4 to 30.0 °C 90 °F32.2 °Cday 31 Dec 3 to Dec 5
    Goose28 to 34 days28 to 32 days 99 °F37.2 °C86 to 88 °F30.0 to 31.1 °C 90 °F32.2 °Cday 25 Nov 26 to Dec 2
    Guinea fowl28 days28 days 100 °F37.8 °C85 to 87 °F29.4 to 30.6 °C 90 °F32.2 °Cday 25 Nov 26
    Pheasant23 to 28 days24 days 100 °F37.8 °C86 to 88 °F30.0 to 31.1 °C 92 °F33.3 °Cday 21 Nov 21 to Nov 26
    Peafowl28 to 30 days28 days 99 °F37.2 °C84 to 86 °F28.9 to 30.0 °C 90 °F32.2 °Cday 25 Nov 26 to Nov 28
    Bobwhite quail23 to 24 days24 days 100 °F37.8 °C84 to 87 °F28.9 to 30.6 °C 90 °F32.2 °Cday 20 Nov 21 to Nov 22
    Coturnix quail17 days16 to 18 days 100 °F37.8 °C85 to 86 °F29.4 to 30.0 °C 90 °F32.2 °Cday 15 Nov 15
    Chukar23 to 24 days24 days 100 °F37.8 °C81 to 83 °F27.2 to 28.3 °C 90 °F32.2 °Cday 20 Nov 21 to Nov 22
    Pigeon17 days– 100 °F37.8 °C85 to 87 °F29.4 to 30.6 °C 90 °F32.2 °Cday 15 Nov 15

    Days, heat and humidity: Mississippi State Extension. "Kentucky says": University of Kentucky Extension. When they differ, we show both.

    Wet-bulb to humidity

    Most charts give humidity as a wet-bulb reading. Your incubator may show a percent. Find your heat on the left. Read across to your wet-bulb number. The top row is the humidity.

    Heat45%50%55%60%65%70%
    99.5 °F37.5 °C80.8 °F27.1 °C82.8 °F28.2 °C85.1 °F29.5 °C86.9 °F30.5 °C88.7 °F31.5 °C90.1 °F32.3 °C
    100 °F37.8 °C81.3 °F27.4 °C83.3 °F28.5 °C85.3 °F29.6 °C87.3 °F30.7 °C89 °F31.7 °C90.7 °F32.6 °C
    101 °F38.3 °C82.2 °F27.9 °C84.2 °F29.0 °C86.2 °F30.1 °C88.2 °F31.2 °C90 °F32.2 °C91.7 °F33.2 °C
    102 °F38.9 °C83 °F28.3 °C85 °F29.4 °C87 °F30.6 °C89 °F31.7 °C91 °F32.8 °C92.7 °F33.7 °C

    From University of Kentucky Extension, ASC-195, Table 4. At 100 °F37.8 °C, a wet-bulb reading of 85 °F29.4 °C is about 54%.

    About the numbers

    Chicken eggs take 21 days. Day 1 is the day after you set them. So eggs set on a Sunday hatch on a Sunday, 3 weeks later.

    Turn the eggs at least 3 times a day. Illinois says to turn them an odd number of times.

    Set eggs within 1 week of when they were laid. They can wait about 3 weeks at most.

    Questions

    How long do chicken eggs take to hatch?

    21 days. Mississippi State and Kentucky both say 21.

    When is lockdown for chicken eggs?

    Stop turning after day 18, say Mississippi State and Kentucky. Illinois says after day 17. Raise the humidity then, and keep the lid shut.

    When do I candle chicken eggs?

    Mississippi State says after 4 to 7 days, and again after 14 to 16 days. Illinois says once, between days 6 and 10. White eggs are easier to see into than brown ones.

    What heat do chicken eggs need?

    100 °F37.8 °C in an incubator with a fan. With no fan, Mississippi State says 102 °F38.9 °C. Kentucky says 100 to 101 °F37.8 to 38.3 °C.

    What humidity do chicken eggs need?

    Illinois says 60% for days 1 to 17. Then 70% from day 18 to the hatch. Mississippi State gives 85 to 87 °F29.4 to 30.6 °C on a wet-bulb thermometer, then 90 °F32.2 °C.

    When do I take the chicks out?

    When they are dry and fluffy, about 22 days from the start, says Illinois. Throw out eggs that have not hatched 60 hours after the first chick.

    Sources

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