Date Difference Calculator
Calculate the difference between two dates in days, weeks, months, years, weekdays and weekends.
Date Difference Calculator Tool
Calculate the difference between two dates in days, weeks, months, years, weekdays and weekends.
Date Inputs
Formula / Method
Difference in days = end date - start date.
Date Notes
About This Tool
Date Difference Calculator is a free online date calculator that helps you calculate the difference between two dates.
You can enter a start date and an end date, then the tool calculates total days, calendar difference in years, months and days, total weeks, approximate months, approximate years, weekdays, weekend days, start day and end day. You can also choose whether to include the end date in the calculation.
This tool is useful for project planning, event planning, school assignments, work schedules, contract periods, age-related calculations, travel planning and anyone who needs to count days between two dates.
How to Use Date Difference Calculator
1. Choose the start date.
2. Choose the end date.
3. Select whether to include the end date if needed.
4. Select decimal places for approximate values.
5. Add a label or purpose if needed.
6. Click Calculate.
7. Review total days, weeks, months, years, weekdays and weekends.
8. Copy or download the date difference report if needed.
Frequently Asked Questions
Is this Date Difference Calculator free?
Yes. This Date Difference Calculator is free to use and does not require signup.
Can I calculate days between two dates?
Yes. Choose a start date and end date, then click Calculate. The tool will show the total days between the two dates.
What does include end date mean?
Include end date means the final date is counted as part of the total. For example, January 1 to January 1 is 0 days normally, but 1 day if the end date is included.
Can this tool count weekdays and weekends?
Yes. The calculator shows how many weekdays and weekend days are in the selected date range.
Does this tool upload my dates to the server?
No. This calculator works directly in your browser using JavaScript. Your dates are not uploaded to our server.