Age Calculator
Find exact age in years, months and days from a date of birth.
Enter a date of birth and an optional as-of date to see years, months, days and the next birthday.
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age-date
Input Parameters
Calculation Result
Calculated Result
26 years, 10 months, 14 days
Age on Nov 15, 2026.
Summary Breakdown
Years
26Months
10Days
14Total months
322Total days
9,815Next birthday
Jan 1, 2027Days until next birthday
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Calculation Formula & Methodology
Age is the calendar difference between the birth date and the as-of date, adjusting for month length.
All arithmetic is processed locally in your browser session using IEEE 754 precision with boundary checks.
Worked example
Scenario: Born 1990-02-01, measured on 2020-03-01.
Calculated Outcome: 30 years, 1 month, 0 days.
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Frequently Asked Questions
When should I use the Age Calculator?
Find exact age in years, months and days from a date of birth. Always read the formula and assumptions on the page before relying on a figure.
Are the results official?
No. OmniCalc runs the math in your browser from the inputs you provide. Laws, lender policies and medical guidance are not applied automatically.
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