Rabbit Gestation Calculator - Kindling Due Date | LazyTools

Rabbit Gestation Calculator

Calculate your rabbit doe's kindling date instantly — enter the mating date and get the kitten arrival date, current gestation stage and full 31-day rabbit pregnancy timeline.

31-day avg gestation Kindling date Nest box guide Breed table

Rabbit Gestation Calculator Tool

Enter breeding date

Date of mating / breeding (required)

Gestation adjustment (days)

Reset

Normal gestation range: 28–35 days.
Average: 31 days.
Mini Rex and Netherlandia average 30–32 days. New Zealand Whites average 31–33 days. Giant breeds like Flemish Giants often deliver at 32–34 days. Smaller breeds tend toward the shorter end.

Enter the mating date and click Calculate

Expected kindling date

Days elapsed

Days remaining

Gestation length

Used for this calculation

Expected litter

6–8 kittens average (range 1–14)

Typical for rabbit

Pregnancy progress

Gestational stage

Fertilisation

Days 0–3

Eggs fertilised within hours of mating. Rabbits are induced ovulators.

Implantation

Days 4–7

Embryos travel to uterus and implant by day 7.

Embryonic Development

Days 8–18

Major organs and body structures form rapidly.

Fetal Development

Days 19–27

Kittens gain fur and grow to near-birth size.

Pre-Kindling

Days 28–35

Doe pulls fur and arranges nest box bedding. Birth imminent.

Looking for another animal gestation calculator?

LazyTools has free gestation calculators for 10 animals. Try the Guinea Pig Pregnancy Calculator next.

Guinea Pig Pregnancy Calculator →

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Features

Why use this free rabbit gestation calculator?

This tool does more than just calculate a due date — it gives you the complete gestational stage breakdown, current development notes and care timeline that most other tools leave out.

📅

Accurate due date calculation

Enter the mating date and get the expected kindling date based on the 31-day average gestation, with early and late estimate options.

📈

Gestational stage with progress bar

See exactly which of the 5 gestational stages your animal is currently in, with a visual progress bar showing how far through the pregnancy you are.

🔍

Days elapsed and remaining

Know exactly how many days have passed since mating and how many days remain until the expected kindling date.

🪨

Breed adjustment option

Choose early (28 days), average (31 days) or late (35 days) gestation to account for breed variation and individual differences.

📋

Signs and symptoms guide

Full checklist of pregnancy signs and pre-kindling indicators so you know what to watch for at every stage.

🔒

100% free and browser-based

No registration, no app download, no personal data collected. Works on desktop, tablet and mobile. Results instantly in your browser.

How to use

How to calculate your rabbit's due date

Enter the mating or breeding date

Select the date the mating took place using the date picker. If mating occurred over multiple days, use the first confirmed mating date for the earliest estimate or the last date for the latest.

Select the gestation adjustment

Choose from average (31 days), early estimate (28 days), or late estimate (35 days) to account for breed or individual variation. The average is the best starting point.

Click Calculate Due Date

The calculator instantly shows the expected kindling date, days elapsed, days remaining, pregnancy progress bar and the current gestational stage with development notes.

Monitor the pregnancy signs

Use the signs and symptoms section below to know what to watch for as the pregnancy progresses and begin your pre-kindling preparations in the final stage.

Reference

Rabbit gestation timeline — stage by stage

Period	Stage	Key events & signs
Day 0	Mating	Induced ovulation triggered by mating
Day 1–3	Fertilisation	Eggs fertilised; zygotes form
Day 7	Implantation	Embryos attach to uterine wall
Day 12–14	Detectable	Palpation can confirm pregnancy
Day 18–21	Visible growth	Abdomen visibly enlarging
Day 27–28	Nest box time	Place nest box in cage
Day 29–30	Nesting	Doe arranges bedding
Day 30–31	Fur pulling	Birth within 24–48 h
Day 31 (avg)	Kindling	Normal birth; range 28–35 days

Signs of kindling approaching:

Fur pulling 24–48 h before kindling
Nesting behaviour from day 27–28
Enlarged abdomen from week 2–3
Reduced appetite in final days
Restlessness and circling
Kittens detectable by palpation from day 12–14

Pre-kindling care checklist:

Place nest box in cage at day 27–28
High-quality hay and pellets throughout
Separate from buck immediately after mating
Palpate gently at day 12–14 to confirm pregnancy
Avoid handling doe unnecessarily in final week
Ensure 12–16 hours of light for productivity

vs the competition

How this rabbit gestation calculator compares

Most free rabbit pregnancy calculators show only a due date. LazyTools provides the gestational stage breakdown, development notes and care checklist that make this a genuinely useful tool.

Feature	LazyTools	Rabbit.org	The Rabbit House	Raising Rabbits
Shows kindling due date	✓	✓	✓	✓
Day-by-day stage breakdown	✓	✗	✗	✗
Nest box timing guide	✓	✗	✗	✗
Palpation guide	✓	✗	✗	✗
Breed gestation table	✓	✗	✗	✗
Post-partum oestrus info	✓	✗	✗	✗

Complete guide