Rabbit Age Calculator

Your rabbit's age in human years — rabbits mature much faster than you'd think.

A free rabbit age calculator that converts your rabbit's age into human years using the commonly-published domestic-rabbit ageing chart — rabbits reach full adult size and sexual maturity within about a year, far faster than dogs or cats. Enter years and months for an accurate result, plus their current life stage (Baby, Junior, Young Adult, Adult, Senior or Geriatric). Runs fully in your browser — nothing is uploaded.

About Rabbit Age Calculator

How to use Rabbit Age Calculator

  1. Enter the years

    Type your rabbit's age in whole years into the Years box.

  2. Add the months

    Pick any extra months from the dropdown for a more precise, in-between age.

  3. Read the human age

    The human-year equivalent and current life stage update instantly as you change either value.

  4. Check the life stage

    See at a glance whether your rabbit is a Baby, Junior, Young Adult, Adult, Senior or Geriatric.

Popular use cases

New Rabbit Owners

See how fast the first year flies.

Birthday Milestones

Celebrate in "rabbit years".

Vet Check-up Prep

Know when senior care starts.

Diet Planning

Life stage guides food needs.

Hutch & Habitat Care

Plan space by life stage.

Pet Education

Teach kids real rabbit ageing.

Frequently asked questions

How do I calculate my rabbit's age in human years?

Enter your rabbit's age in years and months. This rabbit age calculator uses the commonly-published domestic-rabbit ageing chart — rabbits are already around 18 in human years by their first birthday since they mature so fast, then age more steadily after that.

Do rabbit years work the same as dog or cat years?

No — rabbits mature even faster than cats in their first year (reaching full adult size and sexual maturity by around 6 months to 1 year), so borrowing a dog or cat chart would understate how quickly a young rabbit is ageing. This calculator uses a rabbit-specific chart instead.

What is considered a "senior" rabbit?

Most rabbit-welfare guidance considers rabbits "Senior" from around 6-8 years old, and "Geriatric" from 9 onward, though well cared-for house rabbits often live 8-12 years. The result card shows your rabbit's exact current life stage based on their precise age.

How accurate is this rabbit age calculator?

It's based on the ageing chart commonly cited by rabbit-welfare and small-animal vet-care resources, and interpolates smoothly between years and months rather than rounding, so it's considerably more accurate than a rough guess or borrowing a dog/cat multiplier.

How long do pet rabbits usually live?

Indoor, well cared-for pet rabbits commonly live 8-12 years, with some living even longer — considerably longer than many people expect. This calculator reflects that longer lifespan in its ageing curve, rather than treating rabbits like a short-lived pocket pet.

Is this rabbit age calculator free?

Yes — completely free, with no sign-up, no app to install and no data uploaded. Everything runs instantly in your browser.

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