Age Calculator
Calculate age in years, months, days, and total days.
Age in years
36
Exact age36 years, 7 months, 16 days
Total days13,377
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How the calculation works
This calculator applies the standard formula below to the values you enter. Results update instantly in your browser—nothing is submitted to a server.
Formula
Age is the calendar difference between the birth date and comparison date.
Worked example
Someone born January 1, 2000 is 26 on January 1, 2026.
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Frequently asked questions
Is this age calculator free?
Yes. It works instantly in your browser with no signup.
Are the results exact?
Results follow the stated formula, but real-world fees, timing, and rounding can vary.
Results are estimates for informational purposes and are not financial or professional advice.