Business Days Calculator
Free, no account, works offline.
Count the working days in a range, or find the date that lands a given number of working days away. Weekends are configurable, because not everywhere takes Saturday and Sunday off.
What it does
- Working days between two dates, excluding weekends and holidays.
- Any weekend definition — Friday-Saturday, Sunday only, or a six-day week.
- Add your own public holidays; they stay on your device.
- Add or subtract working days to find a deadline.
The part most calculators get wrong
The shortcut of weeks times five plus a remainder. It breaks whenever a range starts mid-week or the weekend is not Saturday and Sunday, which is most of the world's working weeks. This counts the days.
Common questions
Can I set a Friday-Saturday weekend?
Yes. Any combination of days can be marked as the weekend, including a single day or none at all.
Are public holidays included automatically?
No, because holiday lists differ by country, region and employer, and a wrong one is worse than none. Add the dates that apply to you and they are remembered on this device.
What if a deadline lands on a weekend?
Adding working days always lands on a working day — weekends and holidays are skipped as it counts, not adjusted afterwards.