Business Days Calculator

Working Days Counter · Exclude Weekends & Holidays

Professional Business Day Calculator
Calculate Business Days
Start Date
End Date
Include End Date
Business days exclude Saturdays and Sundays. You can also add custom holidays.
Add Business Days
Start Date
Number of Business Days to Add
Adds only business days (Mon-Fri), skipping weekends and holidays.
Holiday Settings
Country / Region (Optional)
Custom Holidays (one per line)
Add custom holidays in YYYY-MM-DD format. These will be excluded from business day calculations.
Calculation Results
Detailed Breakdown
Holiday List Applied
Weekends Excluded
Automatically skips Saturdays and Sundays from calculations
Holiday Support
Add custom holidays or select country presets
Add Business Days
Calculate future dates by adding business days

Frequently Asked Questions

What are business days?
Business days are weekdays from Monday to Friday. Saturdays and Sundays are excluded. You can also exclude public holidays.
How is the calculation done?
The calculator iterates through each date between start and end, counts only days that are weekdays (Mon-Fri) and not in your holiday list.
Can I add my own holidays?
Yes! Add custom holidays in YYYY-MM-DD format in the text area. One date per line.
What if the end date is before start date?
The calculator will automatically swap dates and show a positive result, or show zero if dates are invalid.
Is this calculator free?
Yes! 100% free. No registration, no hidden costs. Use it for project planning, invoice calculations, and more.
What's the difference between business days and calendar days?
Calendar days count every day. Business days count only working days (Monday-Friday), excluding weekends and holidays.
business days calculator working days counter business day calculator workdays between dates add business days holiday calculator

Business Days Calculator - Calculate Working Days Between Dates

Our Business Days Calculator helps you calculate the number of working days between two dates. Exclude weekends and holidays, add business days to any date, and plan your projects effectively.

How it works: Enter a start date and end date to count business days. The calculator automatically excludes Saturdays and Sundays. You can also add custom holidays or select country presets for public holidays.

Features: Count business days between dates, add business days to a start date, exclude weekends and holidays, multiple country holiday presets, custom holiday support, and detailed breakdown of results.

Perfect for: Project managers, invoice calculations, delivery date planning, HR professionals, contract deadlines, and anyone needing to calculate working days.