How this age calculator works
This tool takes the date of birth you enter and compares it against the current date and time, recalculating every second. It breaks your age down into years, months and days, and also shows running totals — total days, weeks, hours, minutes and seconds you've been alive.
It also works out how many days remain until your next birthday, which is handy for planning celebrations or simply satisfying curiosity. All calculations happen instantly in your browser — nothing is sent anywhere or stored.