Business Days Calculator: The Complete Guide
Count the working days between two dates. Enter a start and end date to see the number of business days (Monday–Friday), and subtract any public holidays to get your true working total.
Who the Business Days Calculator is for
Project managers and professionals calculating deadlines, SLAs, or delivery windows in working days.
How to use the Business Days Calculator
- Type your values into the fields above — pick your currency or units where the calculator offers them.
- Results update automatically as you type; there's no submit button and nothing is sent to a server.
- Adjust any input to compare scenarios, then copy the result with a single click.
How it works
Business days = the count of Monday-to-Friday dates between the start and end (inclusive), minus any public holidays you enter. Weekend days are excluded automatically.
Features
- Working days (Mon–Fri)
- Exclude public holidays
- Weekend & calendar totals
- Any two dates
Why business days matter
Deadlines, shipping estimates, and service-level agreements are usually quoted in business days, not calendar days. Counting only Monday through Friday — and subtracting public holidays — gives a realistic timeline. Since holidays differ by country and region, this calculator lets you enter how many to exclude.