Age Calculator

Find age in completed years and time until the next birthday.

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Behind the answer

How to calculate

Completed years = reference year − birth year, adjusted when the birthday has not occurred.

Someone born June 15, 1990 is 36 on September 9, 2026.

A February 29 birthday is treated as February 28 in non-leap years.

Results display up to 8 decimal places; exported numbers preserve calculation precision. This is a calculation summary, not an official certificate.