Business Days Calculator
Count the number of business days (Mon–Fri) between two dates. Enter your values, click Calculate, and get the full result with its breakdown — everything is processed on your device, nothing is sent to a server.
All calculations run in your browser. Your data is never sent to our servers.
Example
Example Input
2020-01-01 → 2020-01-31
Example Output
23 business days
How to Use
- 1Fill in each input field with the values you want to compute.
- 2If there are choices (units, mode, operation), pick what you need.
- 3Click the Calculate button (or press Ctrl+Enter).
- 4The main result and its breakdown appear in the Result area. Click Copy to copy it.
About the Business Days Calculator
The Business Days Calculator counts working days (Monday to Friday) in a date range, excluding weekends. Useful for delivery estimates, SLAs, and project deadlines.
Note: public holidays are not auto-excluded since they vary by country.
FAQ
Is this Business Days Calculator accurate?
Yes. It uses standard formulas and runs directly in your browser at full JavaScript precision (plus BigInt/decimal.js for large numbers where needed).
Is my data sent to a server?
No. All calculations happen entirely on your device. No values are sent to or stored on our servers.