Business Days Formula:
Business Days = Total Days - Weekends - Holidays
Weekend Days:
Typically Saturday (6) and Sunday (0)
Work Hours:
Total Hours = Business Days × Hours Per Day
Advanced Calculations:
Project Duration:
Duration = Business Days ÷ Team Size × Efficiency
Working Weeks:
Working Weeks = Business Days ÷ 5
Calendar to Business Days:
Multiply by 0.714 (5/7 ratio)
❓ Frequently Asked Questions
What are business days?
Business days typically refer to Monday through Friday, excluding weekends (Saturday and Sunday) and public holidays. These are the days when most businesses and government offices are open.
How are weekends calculated?
By default, weekends are Saturday and Sunday. However, this calculator allows you to customize which days count as weekends based on your work schedule or country norms.
Are holidays automatically excluded?
Yes, the calculator excludes public holidays for the selected country. You can also add custom holidays or choose to include all days in the calculation.
How do I calculate work hours?
Select the number of work hours per day from the dropdown. The calculator will multiply business days by work hours to give you total work hours.
Can I calculate business days backwards?
Yes, simply set the end date before the start date. The calculator will work in reverse and give you business days between the two dates regardless of order.