★ Free Calculator
Age Calculator
Calculate exact age in years, months and days, and the days until the next birthday.
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Runs entirely in your browser. Your files and text are never uploaded to our server.
About this toolAge Calculator finds an exact age from a date of birth, on today's date or any other date, for forms, eligibility checks and fun facts.
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Age Calculator finds an exact age from a date of birth, on today's date or any other date, for forms, eligibility checks and fun facts.
Step-by-step guide: How to Calculate Age From Date of Birth in Years, Months and Days
More about Age CalculatorHow to use, good to know & FAQ
How to use Age Calculator
- Enter the date of birth.
- Optionally change the "age on" date.
- Read the age in years, months and days, plus totals in weeks, days and hours.
Frequently asked questions
Is my date of birth stored?
No. The calculation happens in your browser.
How is exact age calculated?
Full years are counted first, then remaining months and days, accounting for month lengths and leap years.
Can I calculate age on a specific date?
Yes. Change the ‘age on’ date to any day.
When to use Age Calculator
- Check eligibility ages for forms and exams
- Find exact age for official documents
- Count days until a birthday
- Calculate age on a past or future date
📘 Read the guide: How to Calculate Percentages: Simple Formulas With Examples