Calculators

Business Days Calculator

Count the business days (Monday–Friday) between two dates, or add a number of working days to a date to find a deadline. Weekends are excluded automatically; the calendar math runs instantly in your browser.

Examples

Input
Thu 1 Jan → Thu 8 Jan
Output
5 business days (7 calendar days)
Input · Weekend skipped
Fri + 3 business days
Output
Wednesday

How it works

In “Days between dates” the tool walks forward from the start date one day at a time and counts every Monday to Friday it lands on. The start date itself is not counted and the end date is.

Thursday 1 January → Thursday 8 January

Counted: Fri 2, Mon 5, Tue 6, Wed 7, Thu 8  = 5 business days
Skipped: Sat 3, Sun 4                        = 2 weekend days

“Add business days” does the reverse: it steps forward, skipping Saturdays and Sundays, until it has counted the number you asked for. Public holidays are not known to the tool, so subtract any that fall in your range. The weekend is fixed as Saturday and Sunday.

How to use Business Days Calculator

Choose a mode
Count business days between two dates, or add N business days to a start date.
Pick the dates
Use the date pickers; the result updates instantly.
Read the answer
Working days counted (weekends excluded), or the resulting deadline date.

Why use this tool

Counts weekdays after the start date, up to and including the end date
“Add N business days” mode for deadlines and SLAs
Also shows total calendar days and weekend days skipped
Instant and private

Frequently asked questions

Every weekday (Monday–Friday) after the start date, up to and including the end date. The start date itself is not counted — matching how deadlines like “within 10 business days” usually work.

No — holidays differ by country, region and even company. The count excludes weekends only; subtract any holidays in your range manually.

Weekend days are never counted, so a range ending on a Saturday or Sunday counts the same as one ending the previous Friday.

Found a bug or have an idea?

ToolOrbit is actively developed — feedback directly shapes what gets built next.

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