Age calculator
Calculate age at a chosen Gregorian date.
How to use
Choose birth and reference dates to calculate a Gregorian age.
Try an example
From 2000-01-01 to 2025-01-01 is 25 years.
Support & limits
A February 29 birthday in non-leap years follows the policy stated in the tool.
Common questions
What should I check before using the result?
A February 29 birthday in non-leap years follows the policy stated in the tool.