Age Calculator

Calculate age from date of birth.

Date of Birth

Calculate Age As Of Date

—Years · Months · Days

—Total Months

—Total Days Lived

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Free to use. Calculation runs in your browser; no account required.

How the Chronological Age Calculator Works

Our free online Age Calculator computes your exact chronological age in years, months, and calendar days from your date of birth up to today (or any custom target date you choose). This is especially helpful when verifying age eligibility for competitive exams (UPSC, SSC, IBPS, State PCS), school or university admissions, passport and visa forms, retirement planning, and insurance policies.

Chronological Age = (Target Year − Birth Year) adjusted for completed Calendar Months and Leap-Year Days

Why Calendar Month Length Matters

Unlike rough division by 365 days, official government and banking forms calculate age by comparing calendar dates: first counting full completed years, then completed calendar months (accounting for 28, 29, 30, or 31 days in the preceding month), and finally remaining days. Our tool follows this exact calendar convention and automatically accounts for leap years every four years.

Frequently Asked Questions

Can I check my age as of a future or past cut-off date?

Yes. Change the "Calculate Age As Of Date" field to the official cut-off date listed in your exam notification or application form (for example, 1 January or 1 August) to verify whether you meet the minimum or maximum age limit.

Is my birth date stored on any server?

No. All date math runs locally in your browser via JavaScript. No personal dates are transmitted or saved.