A calculator you can trust
Accuracy first
Ages are calendar differences — full years, then months, then days — with real month lengths and leap years. Feb 29 birthdays roll to Feb 28 in non-leap years. Big totals (hours, minutes) are labelled approximate because they don't include time-of-day precision.
Privacy as a feature
Your date of birth stays on your device. We don't need an account to calculate your age. Sharing only shares your age text — never your DOB.
Fast by design
Static pages, minimal JavaScript, no heavy frameworks on the client. The calculator works instantly after page load and honours reduced-motion settings.
Honest generations
Generation ranges are approximate and vary by source. We show commonly recognised ranges with short, respectful descriptions — never inferring personality, beliefs or ability from a birth year.