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Age Calculator – Free Online Tool
Quick answer: Find your exact age in years, months and days, and days to your next birthday.
About this tool
Choose a date of birth to see your exact age and how many days remain until your next birthday.
How to use the Age Calculator
- Enter your text, choose your file or set the options in the tool above.
- Click the action button for the result you want.
- Copy or download the output. Nothing leaves your device.
Why exact age matters
Many forms ask for age in years, months and days: school admissions, job and exam eligibility, insurance, passport and visa applications, and sports categories. A rough guess can put you on the wrong side of a cut-off, so an exact calculation helps.
How the calculation works
The calculator counts full calendar years first, then full months, then the remaining days. If your birth day of the month is later than today's, it borrows days from the previous month, exactly as you would on paper. It also shows how many days old you are and how many days remain until your next birthday.
Things to keep in mind
- It uses your device's date. If your phone or computer has the wrong date, the result will be wrong.
- Cut-off dates. Many exams and jobs ask for age on a fixed date, such as the last day of applications. This tool always uses today, so for a fixed date count the difference to that date yourself or check the notice carefully.
- 29 February births. In non-leap years the legal birthday differs between countries, and the next-birthday countdown treats it as 1 March.
Useful for
Checking eligibility before you apply, filling in forms accurately, planning birthdays and milestones, and settling family arguments about who is older. Your date of birth stays in your browser and is never sent anywhere. If you need to work out a discount or a change in numbers instead, try the Percentage Calculator.
Why use ToolWorlds?
- Free, with no registration
- Private: runs in your browser
- Works on phones, tablets and desktops
Frequently asked questions
- Does it use today's date?
- Yes. It uses the date on your device.
- Is my data safe?
- Yes. Processing happens in your browser. Nothing you enter is sent to our servers.
- Is it free?
- Yes. It is free, with no sign-up or usage limit.
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