Days Between Dates Calculator
Count the number of full days between two dates and see the result as weeks plus leftover days.
Use it for project planning, travel, appointments, billing periods, and deadlines.
Result
--
Run the calculation to see the full day count.
| Metric | Value |
|---|---|
| Total days | -- |
| Weeks | -- |
| Days remaining | -- |
| Included end date total | -- |
Quick Answer
This calculator gives you the number of full days between two dates, plus an easy weeks-and-days breakdown.
How to Calculate
- Enter the start date.
- Enter the end date.
- Choose whether the end date should count as a day.
- Click Calculate.
Formula
Full days = end date - start date
Weeks = full days / 7
Worked Examples
Example 1: March 1 to March 31 is 30 days.
Example 2: January 1 to January 8 is 1 week.
Example 3: A two-week project timeline can be displayed as 14 days or 2 weeks.
How to Interpret Your Results
| Output | Meaning | Action |
|---|---|---|
| Total days | The exact full-day span between the two dates. | Use it for billing, planning, or tracking time. |
| Weeks and days | A friendlier way to read the same range. | Useful for quick communication. |
| Error | The end date is earlier than the start date. | Swap the dates or choose a later end date. |
Frequently Asked Questions
Inclusive counting is useful when your rule counts both endpoints of the range.
Yes. The calculator works across any valid date range.
No. This page focuses on full days and whole-week breakdowns.
Related Calculators
References
- OmniCalculator reference page
- The count is measured between the two calendar dates.
- Last reviewed: March 2026.