Working Days Calculator
Count business days between two dates, excluding weekends and public holidays.
Inputs
Formula
- Working days = total days − weekend days − holidays
Project deadlines and notice periods are usually counted in working days. Choose the weekend pattern your workplace follows and subtract any declared holidays for an accurate figure.
Step-by-step calculation
- 1
Calendar days
inclusive count
31
- 2
Minus weekends and holidays
22
Frequently asked questions
What does the Working Days Calculator do?
Count business days between two dates, excluding weekends and public holidays. The Working Days Calculator on OneCalcApp returns the result instantly as you type, together with the formula and the substituted values.
How do I use the Working Days Calculator?
Enter your values in the input fields, choose the relevant units or options, and the Working Days Calculator recalculates automatically. You can copy, print or export the result.
Is the Working Days Calculator free to use?
Yes. The Working Days Calculator is completely free, needs no sign-up and has no usage limit on OneCalcApp.
How accurate is the Working Days Calculator?
It uses the standard formula Working days = total days − weekend days − holidays and full double-precision arithmetic, so results match a manual calculation to the displayed number of digits.
Does the Working Days Calculator work on mobile and offline?
Yes. The Working Days Calculator runs entirely in your browser on phones, tablets and desktops, and your inputs never leave your device.
Where can I find related tools?
OneCalcApp hosts 300+ calculators and converters, including the full Date & Time collection. Related tools are linked at the bottom of every page.
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