Age Calculator
Calculate your exact age in years, months, days, hours, minutes and seconds — with a live ticking counter, birthday countdown, date difference tool and historical lifespan comparisons.
Real-time age counter
How the age calculator works
The real-time counter ticks every second, showing your exact age in years, months, days, hours, minutes and seconds — plus running totals in weeks, days, hours and seconds. Add your time of birth for second-level precision, and the tool counts down to your next birthday automatically.
The calendar breakdown is month-length aware: it accounts for the different number of days in each month and leap years, so "1 month" always means a real calendar month, not a flat 30 days. The date difference mode works the same way for any two dates — past or future.
Planning finances around a milestone birthday? Our loan calculator and mortgage calculator can help you run the numbers.