Free Business Days Calculator - Count Workdays Between Dates
Calculate the number of business days between two dates, excluding weekends and holidays.
Formula & Methodology
This tool counts every calendar day in your selected range, then systematically subtracts non-working days like weekends and holidays to reveal pure business days.
- Business Days = Calendar Days - Weekends - Holidays - Custom Exclusions
Worked Example
Using the Business Days Calculator: apply the formula above to your input values. For instance, Business Days = Calendar Days - Weekends - Holidays - Custom Exclusions. The tool performs each step instantly and shows the result.
Frequently Asked Questions
What counts as a business day?
A business day is a weekday, Monday through Friday, excluding weekends and typically public holidays.
How does this differ from a calendar-day count?
It skips weekends (and holidays if set), so it reflects actual working time rather than every date in between.
Why do deadlines use business days?
Contracts and shipping often run on business days, so counting them gives a realistic delivery or due date.