Business Days Calculator
Count working days (weekdays) between two dates, excluding weekends.
Deadlines, shipping estimates and SLAs are usually quoted in business days, not calendar days — and the gap matters. "Five business days" spanning a weekend is a full week on the calendar; span two weekends and it's nine calendar days. Counting weekdays by hand across a range is exactly the kind of thing that's easy to miscount.
Enter a start and end date and this calculator counts the business days (Monday to Friday) between them, along with the weekend days it excluded and the total calendar span. It's built for project timelines, payment terms and delivery windows.
How to use Business Days Calculator
- 1
Enter the start date
The first day of the range.
- 2
Enter the end date
The last day to include.
- 3
Read the working-day count
Business days, weekend days and total shown separately.
Features
- Counts Monday–Friday working days
- Shows excluded weekend days and total span
- Inclusive of both endpoints
Frequently asked questions
Common mistakes to avoid
- Forgetting to subtract public holidays, which this tool doesn't know about.
- Assuming "5 business days from Monday" lands on Friday — it depends on whether you count the start day.
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