Free Business Days Calculator
No holidays added. Click + Add Holiday to exclude specific dates.
Enter your dates to calculate business days
Business Days Calculator – Calculate Working Days Between Dates
The business days calculator (also referred to as a working days calculator or workdays calculator) is a free online tool that helps you calculate business days between dates as well as the total number of calendar days separating any two dates. It is useful for project planning, payroll processing, deadline tracking, and many other scenarios where you need to know exactly how many weekdays (or all days) lie in a given period.
Calendar Days Difference
To find the full number of days between a start date and an end date, simply enter both dates. The tool immediately returns the difference in days.
Example:
Entering January 15, 2021, as the start and March 17, 2021, as the end gives 61 calendar days. If you check the “Include end date” option, the result increases to 62 days (the end date is added to the count).
Business Days (Excluding Weekends)
When you need only Monday through Friday, select Exclude weekends from the Business days dropdown. The calculator counts only weekdays within the interval.
Example:
For May 2021 (31 calendar days), the working days total 21 under a standard 5‑day workweek. This number varies depending on the month and the year.
Excluding Only Sundays (6‑Day Workweek)
If your workweek runs Monday through Saturday with Sunday off, choose Exclude Sundays. The tool then counts all days except Sundays.
Example:
Using the same May 2021 period, the working days become 26 when only Sundays are excluded.
Adding Custom Holidays
Beyond regular weekends, you may want to exclude specific public or personal holidays. The business days calculator allows you to add individual dates to a “Holidays” list. After entering the start and end dates and selecting your preferred business‑day mode, you can list each holiday to be excluded. The final figure reflects the exact number of workdays after removing those additional dates.
Typical Workday Figures
For a 5‑day workweek, the average number of business days per year is about 260, while monthly counts range from 19 to 22 working days depending on the month’s length and the holidays in effect. (In 2021, for example, there were 261 business days under the standard Monday–Friday schedule.) Keep in mind that these numbers can shift based on local regulations, company policies, and the specific holidays observed.
This free business days calculator online simplifies the process of determining working days between dates, whether you are planning tasks, managing work schedules, or simply curious about the number of weekdays ahead.
FAQ
1. How do I calculate business days between two dates?
Enter the start and end dates, select the Exclude weekends option (or another business-day mode), and optionally add holidays to the Holidays list. The calculator then shows the number of working days.
2. How many business days are there in a year on average?
For a 5-day workweek, the average is about 260 business days per year. Monthly averages range from 19 to 22 working days, depending on the month and holidays.
3. Can I use this working days calculator to exclude only Sundays?
Yes, choose the Exclude Sundays option to count all days except Sundays, which fits a 6-day workweek schedule.
4. Does the business days calculator automatically exclude public holidays?
No, public holidays are not excluded by default. You must manually add each holiday you want excluded in the Holidays input field.
5. What is the difference between the calendar days count and the business days count?
Calendar days include every day between the dates (including weekends). Business days count only weekdays (or the days that are not excluded based on your chosen option).
How to Use
- Enter the start and end dates for the period you want to calculate.
- Choose your business days mode and toggle whether to include the end date.
- Optionally add holiday dates to exclude, then click Calculate to see your business day count.