How to Calculate Business Days
Count working days while excluding weekends.
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Quick answer
Business days usually exclude Saturdays and Sundays. They are useful for deadlines, deliveries, contracts, and work planning.
Step-by-step
- Write down the values you already know.
- Use the correct formula and keep the units consistent.
- Calculate the result and check whether it makes practical sense.
Use the calculator
The easiest way to avoid mistakes is to use the related calculator and then review the formula shown on the page.
Open Business Days Calculator →
Common mistakes
- Using the wrong unit or percentage format.
- Rounding too early.
- Forgetting extra costs, waste, taxes, or allowances where they apply.
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