How Long Does it Take for Chickens to Hatch Eggs?

By Chicken Pets on
How Long Does it Take for Chickens to Hatch Eggs?

Curious about how long it takes for chickens to hatch eggs? You’re in the right place! In this blog post, we will explore the incubation periods for various chicken breeds and the steps to create the perfect environment for a successful hatch.

How Long Does it Take for Chickens to Hatch Eggs?

Generally, it takes about 21 days for chicken eggs to hatch. However, the exact incubation period may vary slightly depending on factors like the chicken breed, temperature, and humidity.

Understanding the Incubation Process

The incubation process is essential for the successful hatching of chicken eggs. It involves maintaining the right temperature, humidity, and ventilation to ensure the eggs develop properly. An understanding of this process will help you take better care of your future chicks.

Creating the Optimal Environment

The key to a successful hatch is maintaining the right conditions during the incubation period. Let’s explore the factors you need to consider:


Temperature is crucial for the development of the embryo. For most chicken breeds, the ideal temperature during incubation is between 99-102°F (37-39°C). Small shifts in temperature can lead to developmental issues, so monitoring the incubator regularly is essential.


Proper humidity is needed to prevent the eggs from drying out. The ideal humidity level is around 50-55% for the first 18 days of incubation and should be increased to 65% during the last three days before hatching. Use a hygrometer to measure and maintain the appropriate humidity levels.


Good ventilation ensures that the developing embryos receive enough fresh air and oxygen. Make sure your incubator has adequate vents to allow for proper air circulation.

Turning the Eggs

To facilitate even development, it’s important to turn the eggs regularly. In nature, the mother hen does this job. In an incubator, you can either turn the eggs manually or use an automatic egg turner. Eggs should be turned at least three times a day, and it’s best to avoid turning them during the last three days of incubation.

Candling the Eggs

Candling is the process of shining a light through the egg to check its development. This can help you determine if the egg is viable and developing as expected. You can candle the eggs around days 7-10 and 18 of incubation. Be gentle while handling the eggs and work quickly to avoid disrupting the incubation process.

Preparing for Hatching

As hatching day approaches, there are some steps you can take to prepare:

  • Stop turning the eggs during the last three days of incubation
  • Increase the humidity to 65%
  • Remove automatic egg turners, if used
  • Be patient and avoid opening the incubator during the hatching process

Hatching Day and Beyond

Once the chicks begin to hatch, they might take 12-24 hours to fully emerge from their shells. Resist the urge to help them, as this can lead to injury or developmental issues. Once the chicks hatch, they can stay in the incubator for another 24 hours, giving them time to dry off and fluff up. After this, move them to a brooder with a heat lamp and provide fresh water and chick starter feed.

Remember, hatching chicken eggs can be a fun and rewarding experience. By understanding the incubation process and providing optimal conditions, you can improve your chances of a successful hatch and enjoy watching your baby chicks grow!

Frequently Asked Questions

If you still have some questions regarding the incubation and hatching process of chicken eggs, browse through our FAQ section below, where we answer some common queries:

1. How do I know if my chicken eggs are fertile?

You can determine if an egg is fertile by candling it around days 7-10 of incubation, which involves shining a light through the egg. If fertile, you’ll see an embryo in the form of a dark spot with spider-like veins surrounding it.

2. Can I use a store-bought egg in an incubator?

It’s not recommended to use store-bought eggs in an incubator, as they are usually not fertilized and have been through temperature and humidity changes that may hinder any possible development.

3. How can I tell if an egg has stopped developing?

Candling the egg can help determine if it has stopped developing. If there’s no visible embryo or the egg appears unusually translucent or murky, it has likely stopped developing.

4. How long can eggs be stored before incubation?

Ideally, eggs should be incubated within a week of being laid. However, they can be stored up to 10 days if kept at a temperature of 55-60°F (12-15°C) and at 75% humidity.

5. What do I do with eggs that did not hatch?

Unhatched eggs should be removed from the incubator and discarded, as they can become a source of bacteria or mold. You can perform an eggtopsy (carefully opening the egg) to try to determine the cause of the failed hatch.

6. How often should I check the incubator’s temperature and humidity?

Check the incubator’s temperature and humidity at least twice a day to ensure they remain within the optimal range.

7. Can I mix eggs from different chicken breeds in the same incubator?

Yes, you can incubate eggs from different breeds together as long as their incubation requirements are similar. However, separate the eggs according to hatch dates for easier management.

8. Do I need a separate incubator for hatching?

A separate hatcher is not necessary, but it can be beneficial for maintaining optimal conditions during hatching and preventing contamination between hatched and unhatched eggs.

9. How do I clean my incubator after use?

Clean the incubator thoroughly after each use, removing debris and using a mild disinfectant to kill any bacteria. Allow the incubator to dry completely before storing it or setting up a new batch of eggs.

10. What is the minimum number of eggs I can incubate at once?

There is no minimum, but for better temperature stability, it’s recommended to have at least 3-4 eggs in the incubator. This helps maintain steady thermal mass inside the incubator.

11. Can I add eggs to the incubator at different times?

While it’s possible, it’s best to incubate eggs with the same expected hatch date to simplify the management of temperature, humidity, and hatching conditions.

12. When can I move the chicks from the incubator to a brooder?

Chicks can be moved to a brooder once they are dry and fluffy, usually within 24 hours after hatching.

13. How long do I need to use a heat lamp in the brooder?

Heat lamps are typically needed for the first 4-6 weeks in the brooder, gradually decreasing the temperature each week until it matches the ambient room temperature.

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