What is the Business Days Calculator?
The Business Days Calculator determines the net working days between two calendar dates, stripping out weekends (Saturday/Sunday by default) and user-specified non-working holidays.
How to Use This Calculator
- Enter the project or period Start Date and End Date.
- Configure which days represent your weekend (Saturday, Sunday).
- Optionally add specific excluded public holidays or company shutdowns.
- Choose whether to include the start or end dates.
- Click Calculate to review the net business days.
Calculation Logic & Formula
Business Days = Total Calendar Days - Weekend Days - Excluded Non-Weekend Holidays.
Worked Example: Business days between Sep 16, 2026 and Oct 28, 2026
Scenario: Calculating work timeline for a client deliverable.
Calculation: 42 calendar days minus 12 weekend days.
Result: 30 business days (12 weekend days, 0 excluded holidays).
Frequently Asked Questions
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