Business Days Calculator
Calculate the number of business days (weekdays) between two dates. Excludes weekends. Free online tool.
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What Is the Business Days Calculator?
Business day calculations are critical for legal deadlines, shipping estimates, payment terms (Net-30 often means 30 business days), project scheduling, and compliance timelines. This calculator counts only weekdays between your selected dates, excluding weekends. For shipping, '5 business days' means 5 weekdays — typically arriving in 7 calendar days if shipped on a Monday.
For more date calculations, try our Date Calculator for durations between dates, or the Age Calculator to find exact age breakdowns.
Practical Tips
- Business days exclude weekends and federal holidays, but definitions vary. Banks follow Federal Reserve holidays (11 per year), while some businesses only observe 6-7. Always confirm which holiday calendar your counterparty uses.
- Standard shipping estimates use business days, not calendar days. '5-7 business days' from a Friday shipment means delivery the following Friday to Tuesday — not Wednesday to Friday of the next week.
- Real estate closings, SEC filing deadlines, and legal notice periods all use business days. Missing a deadline because you counted calendar days instead of business days can have costly consequences.
Related Date Tools
All calculations run in your browser using JavaScript's Date API. For date references, see TimeAndDate.com.
Frequently Asked Questions
What counts as a business day?
A business day is any weekday (Monday through Friday) that is not a federal holiday. In practice, most business day calculations only exclude weekends, since holidays vary by employer, industry, and country.
How do I calculate a deadline that is '30 business days' away?
Count 30 weekdays forward from the start date, skipping Saturdays and Sundays. This calculator does it automatically. Note: 30 business days is approximately 6 calendar weeks (42 days).
Do banks count business days differently?
Banks follow Federal Reserve business days, which exclude weekends and federal holidays. Wire transfers, ACH payments, and check clearances all use banking business days. A '3 business day' bank hold can span 5 calendar days if it crosses a weekend.
How many business days are in a year?
A typical year has 260-262 weekdays (52 weeks × 5 days). After subtracting 10 federal holidays, most US workers have approximately 250-252 business days per year.
Results are calculated in your browser using standard formulas and are provided for reference only. For critical or high-stakes decisions, verify results with an authoritative source.
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