Business Days Calculator
A business days calculator counts the total number of workdays between two selected dates while automatically excluding weekend days (Saturdays and Sundays). Used for contractual delivery timelines and sprint planning, it shows that a four-week period containing 28 total calendar days includes exactly 20 productive business days.
By Daniel Okoro (Mathematics Editor) · Reviewed by Maya ChenUpdated · Published
BUSINESS WORKING DAYS
Calculated across a total of 22 calendar days (7 weekend days excluded).
Work Days:15
Weekend Days:7
Total Calendar:22
How Does the Business Days Calculator Work?
- Choose a start date and an end date.
- The calculator iterates through the range, filtering out weekend days (Saturday and Sunday).
- View the total working days and total weekend days.
What Is the Business Days Formula?
Business Days = Total Days - Weekend Days (Sat & Sun)
Counts only Monday through Friday calendar dates.
Variables
Business Days:Number of active working days
How Do You Calculate Business Days Step by Step?
Counting business days from Monday, Oct 5 to Friday, Oct 23Start Date: 2026-10-05
End Date: 2026-10-23
Total calendar span: 19 days
Saturdays and Sundays: 4 weekend days
Net business days: 15 working days
Final Solution:15 Business Days (3 full work weeks)
Business Days Questions and Answers
This utility standardizes on weekend filtering (Monday through Friday). Because statutory holidays vary by country and state, verify public holidays for your specific locality.
Where Do These Business Days Standards Come From?
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