Rabbits are pregnant for about 31 days — the calculator simply adds that to your doe’s breeding date to estimate her kindling (birth) date. Most does kindle between day 28 and day 34, so treat the result as a planning window, not a fixed appointment. The 31-day average is the figure used by the Merck Veterinary Manual and by university extension guides.
How the rabbit gestation calculator works
The formula is deliberately simple: kindling date = breeding date + 31 days. From there the tool also marks the earliest likely date (day 28), the latest normal date (day 34), and the two management dates that matter most — when to palpate and when to add the nest box. If you tell it you’re expecting a small litter, it nudges the due date to day 32, because does carrying four or fewer kits tend to gestate slightly longer, as noted by the Merck Veterinary Manual. Start counting from the first observed mating.
How long is a rabbit pregnant?
A domestic rabbit’s gestation period averages 31 days, with a normal range of roughly 28 to 34 days. The Merck Veterinary Manual puts the typical figure at about 31–33 days, while Utah State University Extension gives around 28–33 days, noting births come earlier in smaller breeds and later in heavier ones. The FAO gives a flat 31 days. In practice, the vast majority of healthy does kindle on or very near day 31. If a doe passes day 34 without kindling, contact a rabbit-savvy vet — the Merck manual notes that after day 34 a dead litter is almost always delivered, and a vet may induce labor.
Rabbit gestation chart by breed and type
Breed matters less than most people expect. Every domestic rabbit — meat breed or pet — shares the same 28–34 day window; body size only shifts the tendency by a day or two. Use this rabbit gestation chart as a general guide, not a guarantee:
| Breed size | Example breeds | Gestation tendency |
|---|---|---|
| Small & dwarf | Netherland Dwarf, Polish, Britannia Petite | ~28–31 days (earlier end) |
| Medium | Dutch, Mini Rex, Havana, Florida White | ~30–32 days |
| Large & meat | New Zealand, Californian, Rex, Champagne | ~31–32 days |
| Giant | Flemish Giant, Continental Giant, French Lop | ~31–33 days (later end) |
Wild lagomorphs differ, which is why searches for “wild rabbit gestation” and “cottontail rabbit gestation” turn up different numbers. The Eastern cottontail (Sylvilagus floridanus) gestates about 28 days (roughly 27–32, per Virginia DWR). A jackrabbit is not a rabbit at all but a hare, and its gestation runs far longer at about 36–42 days. This calculator is built for domestic does, so use those wild figures for reference only.
| Type | Species | Gestation |
|---|---|---|
| Domestic / European rabbit | Oryctolagus cuniculus | ~31 days (28–34) |
| Eastern cottontail | Sylvilagus floridanus | ~28 days (27–32) |
| Jackrabbit (a hare) | Lepus spp. | ~36–42 days |
How to use the calculator
- Enter the breeding (mating) date — the day you first put the doe with the buck.
- Optionally set the expected litter size; small litters shift the due date a day later.
- Read the kindling due date and the 28–34 day window.
- Note the nest-box date (day 28) and the palpation window (days 10–14) from the milestone list.
- Use Print / save to keep a copy with your breeding records.
BarnCalc · Rabbits
Rabbit Gestation Calculator
Enter the breeding date to get your doe's kindling due date, nest-box day and a full pregnancy timeline.
Estimated kindling (due) date
—
Palpation check
—
Days 10–14
Add nest box
—
Day 28
Call vet if overdue
—
Day 34
Rabbit gestation chart — by breed type & species
| Breed size / examples | Gestation tendency |
|---|---|
| Small & dwarf — Netherland Dwarf, Polish, Britannia Petite | ~28–31 days (earlier end) |
| Medium — Dutch, Mini Rex, Havana, Florida White | ~30–32 days |
| Large & meat — New Zealand, Californian, Rex, Champagne | ~31–32 days |
| Giant — Flemish Giant, Continental Giant, French Lop | ~31–33 days (later end) |
| Wild species (info only) | Gestation |
|---|---|
| Domestic / European rabbit (Oryctolagus cuniculus) | ~31 days (28–34) |
| Eastern cottontail (Sylvilagus floridanus) | ~28 days (27–32) |
| Jackrabbit (a hare, Lepus spp.) | ~36–42 days |
How it works: a rabbit's due date is estimated as the breeding date plus about 31 days (normal range 28–34), the figure used by the Merck Veterinary Manual and university extensions. Small litters (4 or fewer) tend to run slightly longer.
Disclaimer: these dates are estimates for planning, not veterinary advice. Watch your doe closely near term, keep good records, and consult a rabbit-savvy vet with any concern — for example if she has not kindled by day 34.
Sources: Merck Vet Manual — Management of Rabbits; Utah State University Extension; FAO — The Rabbit.
Rabbit pregnancy week by week
Because the whole rabbit gestation cycle lasts only about a month, the “weeks” are short and each one has a job:
- Week 1 (days 1–7): Rabbits are induced ovulators, so ovulation follows mating. Fertilized eggs implant around day 7. Keep the doe calm and well fed.
- Week 2 (days 8–14): An experienced breeder or vet can gently palpate the abdomen and feel grape- or marble-sized embryos; the Merck manual notes day 12 is the best time.
- Week 3 (days 15–21): The abdomen rounds out and the doe eats more. Increase good hay and pellets.
- Week 4 (days 22–28): Add the nest box by day 28. The doe begins pulling fur and carrying hay to build a nest.
- Kindling (days 29–34): Most does kindle around day 31, usually in the early morning, typically producing 4–12 kits. Keep the area quiet.
Frequently asked questions
How long is a rabbit’s gestation period in days?
About 31 days on average, with a normal range of 28–34 days. Most healthy does kindle on or near day 31.
What is the gestation period for wild and cottontail rabbits?
Eastern cottontails gestate around 28 days (about 27–32). Jackrabbits are hares, not rabbits, and carry their young roughly 36–42 days.
Does gestation differ by breed — New Zealand, Flemish Giant, Lionhead, Rex?
Only slightly. All domestic breeds fall in the 28–34 day window; smaller breeds tend toward the earlier end and giant breeds toward the later end.
When should I put in the nest box?
Around day 28. Adding it earlier usually means the doe fouls it with urine and droppings before the kits arrive.
My rabbit is past her due date — when should I worry?
Watch closely after day 32. If she has not kindled by day 34, contact a rabbit-savvy vet, who may induce labor.
Can a rabbit get pregnant again right after giving birth?
Yes. A doe can conceive within about 24 hours of kindling, so separate the buck. Many breeders wait 35–42 days before rebreeding.
Sources
- Merck Veterinary Manual — Management of Rabbits: merckvetmanual.com
- Merck Veterinary Manual — Breeding and Reproduction of Rabbits: merckvetmanual.com
- Utah State University Extension — Rabbit Breeding and Management: extension.usu.edu
- FAO — The Rabbit (Chapter 8): fao.org
- Virginia Dept. of Wildlife Resources — Eastern Cottontail: dwr.virginia.gov
Reviewed for accuracy against the Merck Veterinary Manual, Utah State University Extension, and the FAO. Last updated: July 12, 2026.
Related calculators: visit the rabbit hub, or try the Rabbit Breeding age calculator.