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SESK: Stuff Everyone Should Know · sesk.info/chick-hatch-21-days

If a broody hen sits on fertile eggs, about how long until chicks hatch?

About 21 days.

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  1. About 7 days
  2. About 2 months
  3. About 21 days ✔

Why: Chicken eggs take about three weeks to hatch, whether under a hen or in an incubator. The time can change if eggs were stored or kept in the wrong conditions.

Huh, didn't know that: Turkey and most duck eggs take about 28 days.

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How do chickens stay fit? Egg-xercise.
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References

Answer: About 21 days. Chicken eggs take about three weeks to hatch, whether under a hen or in an incubator. The time can change if eggs were stored or kept in the wrong conditions.

  1. Incubation Duration Periods, Mississippi State University Extension extension.msstate.edu/agriculture/livestock/poultry/incubation-duration-periods
    In general, the incubation periods are 21 days for chickens
    Checked 2026-10-11.
  2. Incubation Duration Periods, Mississippi State University Extension extension.msstate.edu/agriculture/livestock/poultry/incubation-duration-periods
    The length of incubation will vary depending on egg collection and storage conditions and incubation conditions.
    Checked 2026-10-11.

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