Age Calculator
Work out an exact age in years, months and days - plus the next birthday countdown.
100% local - nothing is uploaded
About this tool
Calculate exact age from a date of birth: years, months and days, total days lived, and the countdown to the next birthday. Pick any reference date to find age as of a past or future day. Everything is computed in your browser.
How is the age calculated?
It counts full years, then the remaining months and days, accounting for different month lengths and leap years.
Can I check age on a past date?
Yes - set the reference date to any day to find the age at that point.
advertisement