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Business Days Calculator: count business days, weekends excluded
Count business days between two dates, or add business days to a specific date.
Business days
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Your data never leaves this browser.
Why use this Business Days Calculator?
- Two practical modes. Count the business-day gap, or project a deadline date.
- Weekends skip automatically. Saturday and Sunday never count as business days.
- Private by design. The dates you enter never get sent to a server.
How to count business days
- Pick Count business days or Add business days.
- Fill in the requested dates.
- Watch the result appear below.
When you need this calculator
A project deadline needs projecting from today, like figuring out what date falls 10 business days from now.
A service SLA measured in business days, not calendar days, needs a quick check.
HR teams calculate contract length, notice periods, or a delivery estimate promised in business days.
Frequently asked questions
Are public holidays factored in?+–
No. This tool only excludes weekends (Saturday and Sunday). Public holidays or collective leave need a manual adjustment on top of this result.
Do the start and end dates count as business days?+–
Yes, the Count business days mode is inclusive. If both dates fall on business days, both get counted.
Can I add business days backward, into the past?+–
Yes. Enter a negative number in Add business days mode to move back to an earlier date.
Is my date data stored anywhere?+–
No. Every calculation runs in your browser.