Niche & Everyday CalculatorsFree100% Client-Side

Age Calculator

Find your exact age in years, months, and days, plus total days lived and a countdown to your next birthday.

100% privateRuns instantly in-browserUpdated regularly

Find your exact age in years, months, and days.

Date of Birth

Calculate As Of

Defaults to today. Change to calculate age on any date.

Exact Age

26 years 8 months 22 days

Total Days Lived9,762

Total Weeks1,394

Total Months320

Next Birthday100d (turns 27)

100% Secure & Private

Your files never leave your computer — processed in-browser with WebAssembly.

Lightning Fast

No queues, no uploads — results in milliseconds, even on mobile.

Modern & Ad-Light

Clean interface, dark mode, and no popups — built to beat legacy tools.

What you get

How accurate is the age calculation?

The calculator computes your exact age down to the day, correctly accounting for varying month lengths and leap years.

Can I calculate age on a past or future date?

Yes, use the "Calculate As Of" field to determine what your age was or will be on any specific date, not just today.

Why does it show my age in months and total weeks?

These additional breakdowns are useful for medical, legal, or milestone purposes where age needs to be expressed in different units.

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