FREE CALCULATOR
Days Between Dates Calculator
Count calendar days between two dates, including both endpoints for planning ranges.
Days including both dates365 days
Weeks52.14
This version counts both the start and end dates. For elapsed time, use Date Difference Calculator.
CALCULATOR GUIDE
About the Days Between Dates Calculator
Count elapsed calendar days between two dates for planning, travel or deadlines.
How to use this calculator
- Enter the values requested by the calculator and check their units.
- Choose assumptions that match the scenario you want to estimate.
- Review the result and change one input at a time to compare scenarios.
- Verify important decisions against the relevant agreement, institution or official guidance.
How the calculation works
Elapsed date difference counts the days between dates; inclusive count includes both start and end dates.
Example
April 1 to April 8 is 7 elapsed days, or 8 dates when counted inclusively.
Things to keep in mind
- Decide whether you need elapsed days or an inclusive count that includes both endpoints.
- Business-day counts and legal deadlines may use separate rules and holiday calendars.
- The result is an estimate based on the inputs and assumptions provided.
- Check applicable terms and official guidance before making financial, employment or academic decisions.
Frequently asked questions
Does the count include both dates?
Elapsed difference normally does not count both endpoints; inclusive count includes both and is one day larger for ascending dates.
Are results guaranteed or official?
No. The tool provides an estimate or arithmetic result and may not include every real-world rule, fee or policy.
Can I compare scenarios?
Yes. Change one input at a time to see how it affects the result.