Business Days Calculator
Count business weekdays between two calendar dates without including weekends.
A business-days calculator is useful for project deadlines, delivery estimates, work schedules, service-level planning and lead-time calculations. This version treats Monday through Friday as business days and does not account for local public holidays.
Enter a start date and end date, then calculate the number of weekdays in the interval. The result excludes Saturdays and Sundays.
Enter the values you want to compare or calculate, then use the result as a practical reference. The calculator runs in your browser and does not require an account.
This tool also fits into a wider set of practical utilities. Depending on what you are trying to calculate or measure next, you can continue with Days Between Dates Calculator, Add Days to a Date, Subtract Days From a Date and Days Until a Date Calculator. For the complete collection, visit the utility tools homepage and choose another tool when your task changes.
How to use this calculator
- Enter your values. Select the dates or numbers required by the calculator.
- Check the inputs. Make sure the dates are in the order and range you intend to calculate.
- Calculate the result. The result appears instantly in the calculator above without submitting a form.
- Use the result. Apply the result to your schedule, deadline, planning or date calculation.
How the calculation works
Enter the values you want to compare or calculate, then use the result as a practical reference. The calculator runs in your browser and does not require an account. The calculation is performed locally in your browser, so the page can return a result immediately after you change the inputs.
Things to know about date calculations
Calendar calculations can differ depending on whether a result is treated as an elapsed interval or an inclusive count. This site uses clear calendar-date rules and explains important assumptions where they affect the result. Business-day calculations on this page exclude weekends but do not automatically remove public holidays.
Frequently asked questions
What counts as a business day here?
Monday through Friday are counted as business days. Saturdays and Sundays are excluded.
Are public holidays excluded?
No. This calculator excludes weekends only; public holidays are not automatically removed.