How to use Date Difference Calculator
What Date Difference Calculator does#
Pick a start and an end date to instantly see the gap between them expressed in days, weeks, months and years. Handy for counting down to a deadline, working out an age or a project duration, or any 'how long between' question. Calculated entirely in your browser.
How to use it#
- Open the tool and enter your values.
- Adjust any options or units.
- Read the result, calculated as you type.
- Copy or reuse the result wherever you need it.
Your privacy#
Date Difference Calculator runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.
Frequently asked questions
Is Date Difference Calculator free to use?
Yes. Date Difference Calculator is completely free and needs no account or sign-up.
Is my data private?
Yes. Date Difference Calculator works entirely in your browser, so your data never leaves your device.
Do I need to install anything?
No. Date Difference Calculator runs online in any modern browser, on desktop or mobile.