Age Calculator
Need your exact age in years, months and days? The Age Calculator does the maths for you. Pick any birth date and get a precise breakdown — handy for forms, milestones and those moments when “about thirty” just will not do.
It also tells you the day of the week you were born, your total days alive, and — for the romantics — roughly how many heartbeats that works out to. All computed instantly, right in your browser.
Your date never leaves your device — the whole calculation runs locally in your browser. Nothing is stored, nothing is sent anywhere.
How accurate is the age calculator?
Exact to the day. It accounts for leap years and varying month lengths, using the same logic as official age computations.
Does my birth date get stored anywhere?
No. The calculation runs entirely in your browser, so your date never leaves your device.
Can I calculate the age gap between two people?
Run the calculator for each birth date and compare the results — the difference in days gives you the exact gap.
Is the age calculator free?
Yes, free forever, with no signup or limits.