Business Day Calculator
Calculate business days excluding weekends and public holidays.
Free & unlimited
Mode
Quick ranges (from today)
Holiday calendar
Start date
StartEnd
May 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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20
21
22
23
24
25
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30
31
Range endpoint
Selected range
Holiday
Today
May 2026 summary
Business
21
days
Weekend
10
days
Holidays
0
days
All processing happens in your browser. No data is sent to any server.
About this tool
- 1
Enter dates
Input a start date and end date, or a start date and number of business days to add.
- 2
Configure holidays
Select your country or region to automatically exclude public holidays, or add custom non-working days.
- 3
Calculate
See the number of business days between the dates, or the target date after adding business days.
- 4
View details
See a breakdown of weekdays, weekends, and holidays in the range.
- Business days exclude weekends (Saturday and Sunday) and selected public holidays.
- For legal deadlines, verify which holidays your jurisdiction recognizes - they vary by country and sometimes by state.
- Use "add business days" mode to calculate shipping delivery dates or contract deadlines.
- Calculate business days between two dates
- Add/subtract a number of business days from a date
- Public holiday presets for multiple countries
- Custom non-working days for company-specific holidays
- Breakdown showing weekdays, weekends, and holidays in the range
- Calculating legal or contractual deadlines measured in business days
- Estimating delivery dates based on business day shipping
- Planning project timelines that account for weekends and holidays
- Determining payment due dates for net-30 or net-60 business day terms