Calculators toolsUpdated July 2026
Free Date Difference Calculator
Calculate the exact years, months, and days between two dates directly in your browser.
Free online tool
No signup
Direct download
Browser-first privacy
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Enter both dates to calculate the difference.
0Total days
0Total weeks
0Business days
0Total months
Your dates stay in your browser.
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How to calculate the difference between two dates
- Enter a start date.
- Enter an end date.
- See the exact years/months/days breakdown, plus total days, weeks, and business days.
Why use this private date calculator?
Your dates stay in your browser. The breakdown is calendar-aware — it accounts for varying month lengths, not a rough days-divided-by-30 estimate.
Common use cases
- Find out how many days until a deadline or event
- Calculate someone's exact time in a role between two dates
- Check the total business days between a start and end date
Frequently asked questions
Is this date difference calculator free?
Yes, with no signup or watermark.
Are my dates uploaded?
No. The calculation runs locally in your browser.
What if I enter the end date before the start date?
The tool swaps them automatically and calculates the same positive result, with a note that they were reordered.
Does it count business days?
Yes. Total business days (Monday through Friday) between the two dates is shown alongside total days and weeks.