Age Calculator

Calculator Tools

Exact age in years, months, days & next birthday

FreePrivateInstant
Date of birth
Age at date (leave empty for today)
Full guide, 4 min readHow to calculate your exact age in years, months and days, and why leap years and cut-off dates matterRead the story behind this tool →

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History

All history →

Age Calculator — at a glance

Find your exact age down to the day, plus how long until your next birthday.

Date of birth
15 Aug 2000
Calculate
Age
26 years, 1 month, 18 days

How to use it — step by step

Your date of birth. Optionally pick another date to see your age on that day.

1

Enter your numbers

Fill in the fields — sensible example values are already filled in.

2

Pick your options

Choose any dropdowns or switches that apply to your case.

3

Calculate Age

Press the button. The result is created instantly on your device.

4

Read the answer

The main answer is shown big at the top, with details below it.

Pro tips

Small things that make the result better.

✦Use “Age at date” to check eligibility on a future date.
✦Total days is handy for milestone celebrations (10,000 days!).
✦The weekday shows what day you were born.

Quick facts

Exactyears, months, days
Next birthdaycountdown
Totalsdays, weeks, hours
Privatelocal only

Frequently Asked Questions

How is age calculated?+

It counts full years, then leftover full months and days between the birth date and the chosen date.

Can I find age on a past or future date?+

Yes. Fill “Age at date” with any date after your birth date.

Is my birth date saved?+

No. Everything is calculated in your browser.

Is this tool really free?+

Yes — completely free, no signup, no watermark and no usage limit.

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