Date Difference Calculator
Calculate the number of days, months, or years between two dates online, free.
Free to useNo software to install — works in any modern browser.
No signup neededOpen the tool and start straight away.
Runs in your browserNothing you enter is sent to a server.
Works on mobileSame tool on your phone, tablet or desktop.
How it works
- Enter — type or paste your values or text.
- Get the result — it is worked out in your browser.
- Adjust — change the inputs to compare, or copy the result.
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About Date Difference Calculator
This calculator finds the exact difference between two dates — useful for counting down to an event, calculating someone's exact tenure or duration somewhere, or working out how many days remain until a deadline.
It works for any two dates, past or future, and the calculation is based on actual calendar dates, so leap years are automatically and correctly accounted for.
It works for any two dates, past or future, and the calculation is based on actual calendar dates, so leap years are automatically and correctly accounted for.
Frequently Asked Questions
Can I calculate the number of days between two future dates?
Yes, it works for any two dates, past or future.
Does it account for leap years?
Yes, calculations are based on actual calendar dates.
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