Age Calculator
Work out your exact age in years, months and days, plus total days lived and how long until your next birthday. Free.
Scan to open on your phone
Point your phone camera at the code to open this tool.
Work out your exact age in years, months and days, plus total days lived and how long until your next birthday. Free.
How to use Age Calculator
- Open the toolNo signup and nothing to install; it works as soon as the page loads.
- Set “Date of birth”
- Read the resultChange any input and the result is recalculated immediately.
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Age Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- How is exact age calculated?
- The calculator counts complete years and months between your birth date and today, accounting for different month lengths and leap years.
- Can I use it for a future date?
- Yes. The result is calculated against today, so it always reflects the current date.