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Age Calculator

Calculate your exact age in years, months and days from your date of birth.

Exact date calculation • Instant results • No registration
AGE CALCULATOR

How old are you exactly?

Enter your date of birth to calculate your precise age and upcoming birthday.

YOUR EXACT AGEEnter your date of birth

Your result will appear here.

HOW IT WORKS

Calculate your exact age

The calculator compares your date of birth with today, or with a date you choose. It accounts for month lengths and leap years to give the difference in complete years, months and days.

Date of birthThe starting date for your age calculation.
Calculation dateToday by default, or a custom date for planning.
Exact resultYears, months, days and time until your next birthday.
AGE GUIDE

What is an age calculator?

An age calculator is an online tool that finds the difference between a date of birth and a selected calculation date. It is useful for birthdays, eligibility checks, planning and everyday date calculations.

How accurate is the result?

The calculation uses calendar dates, month lengths and leap-year rules. The result is shown in completed years, months and days.

Can I calculate age on a past date?

Yes. Turn on the custom date option and choose any date on or after the date of birth. This can help with historical age or eligibility checks.

What does next birthday mean?

It shows the number of days remaining until the next occurrence of your birth date based on the selected calculation date.

Age Calculator FAQs

How do I calculate my exact age?

Yes. Enter your date of birth to get an exact years, months and days result without registration.

Can I use a custom calculation date?

Yes. Enable the custom date option and select the date you want to use.

Does it handle leap years?

Yes. The calculation uses calendar date arithmetic, including leap years and varying month lengths.

Is the age calculator free?

Yes. Enter your date of birth to get an exact years, months and days result without registration.

Can I use it on mobile?

Yes. Enter your date of birth to get an exact years, months and days result without registration.

HOW IT WORKS

Calculate an exact age or date difference.

Compare a date of birth with today or a chosen date to get a detailed age result.

  1. 1. Enter a birth date

    Select the date of birth to use in the calculation.

  2. 2. Choose a calculation date

    Use today or pick a custom date for planning.

  3. 3. Read the result

    Review age in years, months, and days, plus the next birthday.