Example
4 weeks, 3 days (4.43 weeks total)
Weeks Between Dates
Count the exact number of weeks, days, and months between two dates instantly in your browser. Free online week difference calculator.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Start date — enter a date.
- End date — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
Loading calculator…
Results
Duration
| Detail | Value |
|---|---|
| Total weeks | |
| Whole weeks | |
| Remaining days | |
| Total days |
What is this calculator for?
Find out how many whole weeks (and leftover days) lie between two dates.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Start date — enter a date.
- End date — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Start date
- a date · required
- End date
- a date · required
About This Calculator
The span between two dates can be expressed as whole weeks plus a remainder of days.
This calculator counts the total days, splits them into full weeks and leftover days, and also reports the total as a decimal number of weeks. The dates are handled in either order (the absolute value is used).
All math runs locally in your browser.
Worked Examples
Frequently Asked Questions
Does it count both endpoints?
It counts full 24-hour days between the two dates rather than including both as separate days, matching how date duration is usually quoted.
What if I enter the dates in reverse?
The tool automatically takes the absolute duration, so the result is the same regardless of which date you put first.