Business Days Calculator – Workdays Between Dates
Count business days between two dates excluding weekends, subtract holidays, or add N workdays to a start date. Free planner for deadlines and leave.
Counts weekdays Monday–Friday (inclusive of both dates); optionally subtracts holidays or projects a deadline N workdays ahead.
Result
21
business days (inclusive)
Total days
31
Weekend days
10
Holidays
0
Weekdays before holidays: 21
About this Tool
The Business Days Calculator measures work time two ways: count weekdays between two dates (excluding Saturdays and Sundays, with an optional holiday deduction) or project a deadline by adding N business days to a start date. Both modes treat Monday–Friday as workdays and count inclusively so quotes and plans match. It opens pre-filled with today through +30 days so results appear immediately.
Common Use Cases
Quote Project Timelines
Convert a 20-workday estimate into a real delivery date that skips weekends.
Track Leave Balances
Count net workdays in a vacation span after subtracting public holidays.
Set SLA Deadlines
Add contractual response days to a ticket date to find the exact due weekday.
Plan Payroll Periods
Verify payable weekdays in a month before running attendance exports.
Pro Tips
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Inclusive Counting
Both endpoints count if they fall on weekdays — a Monday-to-Friday span is 5 business days, not 4.
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Holidays Are Manual
Enter public holidays as a count; the tool subtracts them from the weekday total.
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Add Mode Skips Weekends
Day 1 is the next weekday after the start date, so adding 1 on Friday lands on Monday.
FAQs
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