Age Calculator
Calculate exact age from a birth date and a reference date. Compare a birth date with a reference date to calculate completed years and months.
Enter a value
Result
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Enter a value to calculate instantly.
Calculation method
How to use Age Calculator
Compare a birth date with a reference date to calculate completed years and months.
ExampleIf the birthday has not occurred yet this year, subtract one from the year difference.
Displayed decimals can vary with the input and rounding method.
Useful together