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Business Days Calculator in Usa

Reviewed by Calculator Editorial Team

Calculate the number of business days between two dates in the USA, accounting for weekends and federal holidays. This calculator helps with project scheduling, contract deadlines, and workday tracking.

How to Use This Calculator

To calculate business days in the USA:

  1. Enter the start date in the "Start Date" field
  2. Enter the end date in the "End Date" field
  3. Select the appropriate federal holidays from the dropdown menu
  4. Click "Calculate" to get the result

The calculator will automatically exclude weekends (Saturdays and Sundays) and the selected federal holidays from the count.

Note

This calculator uses the standard US federal holidays. Some states may observe additional holidays, which you should account for separately if needed.

Formula Used

The business days calculation follows these steps:

  1. Calculate the total number of days between the start and end dates (inclusive)
  2. Subtract the number of weekends (Saturdays and Sundays) in that period
  3. Subtract the number of federal holidays that fall between the dates

Business Days Formula

Business Days = Total Days - Weekends - Federal Holidays

Worked Examples

Example 1: Simple Date Range

Calculate business days from January 1, 2023 to January 10, 2023 (excluding federal holidays):

  1. Total days = 10 (Jan 1-10)
  2. Weekends = 2 (Jan 7 and Jan 8)
  3. Federal holidays = 0 (New Year's Day is Jan 1, but it's the start date)
  4. Business days = 10 - 2 - 0 = 8

Example 2: Including Federal Holidays

Calculate business days from December 20, 2023 to December 31, 2023 (including Christmas Day):

  1. Total days = 12 (Dec 20-31)
  2. Weekends = 2 (Dec 23 and Dec 30)
  3. Federal holidays = 1 (Christmas Day, Dec 25)
  4. Business days = 12 - 2 - 1 = 9

Frequently Asked Questions

Does this calculator account for all US federal holidays?

Yes, the calculator includes all standard US federal holidays. You can select which holidays to include in your calculation.

How does the calculator handle partial days?

The calculator counts full days only. If your project starts or ends mid-day, you should adjust the dates accordingly.

Can I use this calculator for international dates?

This calculator is specifically designed for US business days. For other countries, you would need to adjust for their weekends and holidays.

Does this calculator account for company-specific holidays?

No, this calculator only accounts for federal holidays. If your company observes additional holidays, you should subtract those separately.