Disclaimer
Last updated: 6 September 2026
The calculators and guides on ExactAge are provided for general information and personal interest only.
Not professional advice
Nothing on this site is legal, medical, financial, immigration or veterinary advice, and no relationship of professional and client is created by your use of it. Our guides describe general conventions and common practice; they cannot account for your particular circumstances, and rules differ between countries and often between regions within a country.
Legal and eligibility decisions
Age thresholds for voting, contracts, employment, examinations, licences, pensions and similar matters are set by law and by the rules of the body concerned. Those rules govern — not our calculators. Before relying on an age figure for an application, a deadline or an entitlement, confirm the position from the official notification, the governing statute, or a qualified professional in your jurisdiction.
Health and clinical use
Our chronological age calculator is a date tool. It reports elapsed time and nothing else. It does not interpret assessments, produce standardised scores or provide any clinical judgement, and it is not a medical device. Where a test manual specifies its own age convention, that manual governs.
Pet age
Our pet age calculator gives an approximation based on published veterinary ageing guidelines. Real biological age varies substantially with breed, weight, genetics, neuter status and health history. It is a way of understanding your animal's life stage, not a substitute for a veterinary examination. If you are concerned about your pet's health, consult your veterinarian.
Accuracy and errors
We test our date arithmetic against a suite of known edge cases — leap years, century years, month-end transitions and 29 February birthdays — and cross-check it against an independent implementation. We nonetheless make no warranty that the site is free from error. If you find one, please tell us at hello@getexactage.com and we will correct it.
External links
Where we link to other sites we do so because we believe the source is useful. We do not control those sites, are not responsible for their content, and a link is not an endorsement.
Limitation of liability
To the fullest extent permitted by law, ExactAge accepts no liability for any loss or damage arising from reliance on any calculation or information published here. Your use of the site is at your own risk. This is set out more fully in our terms of use.