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Rabbit Gestation Calculator

Created by Adena Benn
Reviewed by Łucja Zaborowska, MD, PhD candidate and Steven Wooding
Based on research by
Diane McClure, DVM, PhD, DACLAM, Animal Resource Center Veterinary Services MSD Veterinary Manual;; September 2020See 1 more source
By Josie F. Turner, Journalist specialized in Animal Welfare. Rabbit Pregnancy – Symptoms, Stages and Care;; November 11, 2019
Last updated: Jan 18, 2024

Welcome to our rabbit gestation calculator. Are you interested in becoming a rabbit breeder but have no idea what the gestation period entails? Or maybe you are a breeder already, and you are looking for a calculator to make your job easier. We have just what you need. We designed our rabbit gestation calculator to inform you on what you can expect and what you need to do throughout your rabbit's 🐇 pregnancy and the correct time to do them.

Keep reading to learn:

  • At what age a rabbit can get pregnant;
  • How rabbits become pregnant;
  • How to know when a female rabbit is pregnant;
  • What is the gestation period for rabbits;
  • How to use our rabbit gestation calculator;
  • How a rabbit gives birth; and
  • How many times a bunny can get pregnant.

Are you interested in other pet calculators like this? Check out our dog age and cat pregnancy calculators.

What do you call a baby rabbit?

A baby rabbit is called a bunny or kit. Multiple babies are called bunnies or kits. Rabbits usually give birth to a litter of six bunnies.

At what age will a rabbit be ready for reproduction?

There are different breeds of rabbits, so if you are wondering at what age a rabbit can get pregnant, it will heavily depend on the species.

  • Smaller breeds tend to reach sexual maturity at about 3.5 to 4 months;
  • Medium-size breeds reach sexual maturity at 4 to 4.5 months; and
  • Larger species reach sexual maturity at 6 to 9 months.

How to recognise when rabbits are ready to mate?

A rabbit is fertile all year round. For female rabbits (does), sexual intercourse triggers ovulation rather than hormones, as in some other types of animals. So when a male (buck) mounts a doe, an egg is released in preparation for gestation.

A rabbit is receptive to mating about 14 out of every 16 days. You can tell if a rabbit is receptive by looking at the color of the vulva. The rabbit is the least receptive to mating when the vulva is a pale pink or white color. A rabbit is receptive to mating when the vulva is bright pink or close to red.

Additionally, the behavior of a doe when introduced to a buck will indicate whether she is ready to mate or not. A female rabbit receptive to mating will bounce around or flatten herself on the ground. On the other hand, when a female rabbit is not receptive, she often runs away or even bites the buck.

How to know when a female rabbit is pregnant

As with most species, several changes occur that indicate pregnancy in a female rabbit.

  1. A pregnant doe may have changes in behavior.
    • Aggression: A doe is more aggressive than usual. She may display an aversion to being petted.
    • Nest building: A pregnant doe will gather straw and prepare a nest for its young.
    • Fur pulling: A pregnant rabbit will pull her fur to line the nest before giving birth.
  2. Change in appetite: A pregnant rabbit has an increased appetite while pregnant. However, during the last two days before delivery, a doe often has a reduced appetite.
  3. Weight gain: As is common among animal species, a female rabbit has an increased weight gain when pregnant.

What is the gestation period of rabbits?

A rabbit's pregnancy lasts 31 to 33 days. Usually, when a rabbit's pregnancy exceeds this period, it results in a stillbirth.

How does a rabbit give birth?

Once a pregnant doe has prepared her box for her babies, she awaits the arrival of her kits.

  • Rabbits usually give birth to multiple kits (a litter).
  • Labour in rabbits is usually pretty short. It can last for 10 to 30 minutes.
  • When she is ready to give birth a female rabbit will go into the nest box and face the back for 5 to 30 minutes, while she attempts to deliver her kits.

How to use our rabbit gestation calculator?

Our rabbit gestation calendar is relatively easy to use. Simply click on the calendar object to select the date of conception and our calculator will return the information on the date of palpation (when to check for a pregnancy), the date to add the nest box, and the expected delivery date.

Most of the dates given come with a time window in which the calculator shows the start date. The typical time window lasts about two days after the one listed.

At Omni Calculators, we seek to make our calculators as accurate as possible. However, this calculator should not be considered a substitute for a veterinarian. Always consult a veterinarian if you believe your pet may be pregnant.

If you are interested in breeding other types of animals, our dog pregnancy calculator may interest you too.

Rabbit gestation table

The following table has information on the different breeds of rabbits and their gestation period.

Rabbit species

Gestation period (in days)

Desert Cottontail


New England Cottontail


European Rabbit


Flemish Giant




New Zealand White


French Lop


Harlequin Rabbit


California white


American Rabbit


Blanc de Hotot


Belgian Hare Rabbit


Mexican Cottontail & Dice


Dwarf Rabbits




Swamp rabbit


Eastern Cottontail


Brush rabbits


You may use the information in this table to calculate your rabbit's delivery date. Of course, you could simply use our rabbit gestation calculator and save yourself a great deal of time 😉.


How to calculate the birth date of rabbits?

To calculate the birth date of a particular species of rabbit, you need to:

  1. Get the date of conception and the gestation period of that breed.
  2. Add the gestation period to the date of conception.
  3. The answer is the due date.

How long are chinchillas pregnant?

28 to 32 days. Chinchilla rabbits have pregnancies that last 28 to 32 days. After this, there is a high risk of stillbirth.

How do you calculate the due date for a chinchilla rabbit?

To calculate the due date for a chinchilla, you need to:

  1. Get the date of conception. Let's use the 10th of June 2022.
  2. Add 28 to the date of conception.
  3. The expected delivery date will be between the 8th and the 12th of July.

How many times can a bunny get pregnant in a year?

12. A rabbit can become pregnant 72 hours after delivery. Additionally, a rabbit's pregnancy lasts approximately one month. As such, what this means is that a rabbit can deliver up to 12 litters in a year.

However, this is not necessarily the best thing for the health of your rabbit or her litter. A rabbit that becomes pregnant soon after delivery will be unable to care for her kits while they need to nurse.

Additionally, for the health of the female, there is a need to allow a recovery period before mating again.

Adena Benn
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Rabbit Type
Palpate rabbit
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