What is the Business Days Calculator?
The business days calculator is a free online tool that helps you work out business days quickly and accurately. It uses the standard formula Count weekdays (Mon-Fri) between the two dates, excluding weekends and shows the result instantly as you type, along with a full breakdown so you can see exactly how the answer was reached.
How to use this calculator
- Enter the start date.
- Enter the end date.
- See the number of working days.
Formula used
Count weekdays (Mon-Fri) between the two dates, excluding weekendsExplanation of each input
- Start date โ the start date used in the calculation.
- End date โ the end date used in the calculation.
Understanding your result
- Working days (Mon-Fri) โ the calculated working days (mon-fri).
- Weekend days โ the calculated weekend days.
- Total days โ the calculated total days.
Step-by-step calculation
For the example values 1 Jun to 30 Jun:
- Apply the formula:
Count weekdays (Mon-Fri) between the two dates, excluding weekends - Substitute the values: exclude Sat/Sun
- Result: about 21 working days
Worked example
| Inputs | 1 Jun to 30 Jun |
|---|---|
| Working | exclude Sat/Sun |
| Result | about 21 working days |
Benefits and practical uses
This calculator saves you time and reduces errors when you need business days. It is useful for students, professionals and anyone who wants a fast, reliable answer without manual calculation. Results update instantly, work in your browser and can be copied or shared in one click.
Assumptions and limitations
- Saturday and Sunday are weekends.
Frequently asked questions
Does this exclude public holidays?
No - it excludes only weekends. Subtract any holidays manually.
Disclaimer: Results are provided for general information. Please verify important figures independently.