Business Days Calculator
Calculate the number of business days (working days) between two dates, or add business days to a start date. Automatically excludes weekends. Free, instant, and private.
How the Business Days Calculator Works
This business days calculator counts only Monday through Friday, automatically excluding Saturdays and Sundays. In "Days Between" mode, it counts the working days between your start and end dates. In "Add Days" mode, it adds a specified number of business days to a start date to find the target date.
Business Days Examples
Mon to Fri (same week) = 4 business days
Mon to Mon (next week) = 5 business days
2 calendar weeks = 10 business days
When to Use a Business Days Calculator
Business days calculations are essential for project deadlines, shipping estimates, legal timelines, contract terms, payment due dates, and HR processes. Many business agreements specify timelines in "business days" or "working days" rather than calendar days. This calculator ensures accurate counting without manual effort.
Business Days for Shipping
Shipping carriers like UPS, FedEx, and USPS quote delivery times in business days. "3-5 business days" means 3-5 weekdays, not calendar days. An order placed on Friday with 3 business day shipping would arrive on Wednesday (Mon, Tue, Wed). Use this calculator to find exact delivery dates.