Date Difference Calculator
Find the time between two dates — total days, a years / months / days breakdown, and the count in weeks and approximate months. Calculated locally.
- Runs entirely in your browser
- No sign-up, no watermark
- Free and unlimited
🔒 Your file stays on your device
How to use Date Difference Calculator
- 1
Open Date Difference Calculator and fill in the fields.
- 2
Pick any options that apply.
- 3
Read the result straight away — it recalculates as you type.
What you get
- Total days between dates
- Years / months / days breakdown
- Weeks and approx months
What happens to your files
This tool runs entirely in your browser. The file you choose is read into memory, processed on your device, and offered back as a download. Nothing is uploaded and nothing is kept once you leave the page.
There is no account, no email, no watermark and no daily limit. Come back whenever you need it.
Frequently asked questions
- Is the end date included?
- The result is the number of whole days from the start date to the end date. It does not add an extra day for the end date itself.