Business Days Calculator
Find the date that is a number of business days before or after another date. Weekends are skipped, so you can estimate delivery dates, deadlines, and payment terms.
Holidays are not counted
Date after the business days
Friday, November 27, 2026
Check the highlighted fields to see your result.
- Calendar days
- 13 days
- Weekend days skipped
- 3
Results are estimates for information only and do not constitute financial, medical, or legal advice.
How it works
The calculator starts on the date you enter and moves one day at a time, forward or backward. It counts a day only when it is not on a weekend. It stops when it has counted the number of business days you asked for, and shows the date it landed on, how many calendar days that took, and how many weekend days it skipped.
It does not know about holidays. Public holidays and company days off are not subtracted.
The idea
Date = start date ± days, skipping Saturdays and Sundays
With a normal Saturday and Sunday weekend, every 5 business days add exactly 7 calendar days, so 260 business days are 52 weeks.
Worked example
You place an order on Friday, November 13, 2026, and it ships in 10 business days.
- Business days 1 to 5 are Monday, November 16 to Friday, November 20.
- Business days 6 to 10 are Monday, November 23 to Friday, November 27.
- Result: Friday, November 27, 2026, which is 14 calendar days later, with 4 weekend days skipped.
Thanksgiving, November 26, 2026, is a US holiday that this calculator does not remove, so in the US the real date would be one business day later.
Frequently asked questions
How do I add business days to a date?
Enter the start date and the number of business days, and choose "Add". The calculator moves forward one day at a time and counts only the days that are not on a weekend. For example, 10 business days after Friday, November 13 is Friday, November 27.
Does this calculator exclude holidays?
No. It only skips weekends. Public holidays, bank holidays, and company days off are not subtracted, because they differ by country, state, and employer. If a holiday falls in the period, add one more business day for each one.
What if the start date is on a weekend?
The first business day after (or before, when subtracting) the start date counts as day 1. So 1 business day after a Saturday is Monday, the same way the WORKDAY function in spreadsheets works.
Can I change which days are the weekend?
Yes. You can choose Saturday and Sunday, Friday and Saturday (used in some countries), or Sunday only.