Age Calculator
Calculate your exact age in years, months, and days.
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What is the Age Calculator?
The Age Calculator computes exact age in years, months, and days from any birth date to any comparison date — defaulting to today — with full leap year support.
Who is the Age Calculator for?
Useful for HR professionals verifying eligibility, parents tracking milestones, medical professionals, and curious individuals.
How to Use the Age Calculator
- Enter your date of birth.
- Select the target comparison date (defaults to today).
- View exact age in years, months, days, and total days lived.
Worked Calculation Example
Frequently Asked Questions
Does it account for leap years?
Yes. Native JavaScript Date objects automatically handle all leap years and calendar irregularities.
Can I calculate age at a past or future date?
Yes. The comparison date is fully customizable for any historical or future date.
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