Business Days Calculator
Free online Business Days Calculator.
Calculator
How to Use
- Enter the required values
- Click Calculate to see the result
- Review the detailed output
Formula
Business Days = Weekdays between dates - Federal Holidays. Weekdays = Mon-Fri. Excludes Sat, Sun, and recognized holidays. Count each qualifying day.
Example Calculations
Project Deadline
Input: Start: October 1, 2026 + 30 business days
Result: November 12, 2026
Between Dates
Input: October 1 to October 31, 2026
Result: 22 business days
Shipping
Input: Ship October 15, 5 business day delivery
Result: Arrives: October 22, 2026
About This Calculator
Free online business days calculator. Calculate instantly in your browser with our easy-to-use tool. No sign-up required.
Our business days calculator is free, easy to use, and provides instant results. All calculations are performed in your browser for privacy and speed.
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Frequently Asked Questions
How are business days calculated?
Weekdays (Mon-Fri) excluding federal holidays. Count each weekday, subtract holidays in range.
Is Saturday a business day?
No, not for most businesses, banks, or government offices.
Holidays and business days?
Federal holidays excluded. Major US: New Year, MLK, Memorial, Independence, Labor, Thanksgiving, Christmas.
Business days per year?
About 260 (52 weeks x 5 days) minus 11 federal holidays = ~249-252 business days.
Calendar days vs business days?
Calendar includes all days. Business excludes weekends and holidays. 5 business days from Monday = next Monday.