Business Days Calculator
Free online business days calculator. Count working days between two dates, excluding weekends and optional holidays.
About This Free Online Business Days Calculator
Our free business days calculator counts the number of working days between two dates, skipping weekends so you get an accurate figure for planning and deadlines. Pick a start and end date and the tool instantly tells you how many business days fall in between, and it can also add a number of working days to a date to find a future deadline. It is invaluable for project management, calculating delivery and shipping estimates, tracking service-level agreements, payroll periods, and any schedule that runs on working days rather than calendar days. Counting working days by hand around weekends is tedious and easy to get wrong. The calculator runs entirely in your browser with instant results, so there is no signup, and nothing you enter is sent to a server.
Features of Our Business Days Calculator
- Count business days between two dates
- Excludes weekends (Saturday and Sunday)
- Add custom holidays to exclude
- Shows total calendar days, weekends, and holidays breakdown
- Can add business days to a start date
- 100% private — browser-only processing
How to Use the Business Days Calculator
The Business Days Calculator works right in your browser — no signup, no installation. Follow these steps:
- Select a start date and an end date.
- Optionally add holiday dates to exclude.
- View the business day count and full breakdown.
- Switch to Add mode to calculate a date N business days from start.
Frequently Asked Questions About Business Days Calculator
What is a business day?
A business day is a day when most businesses are open for operation. In most countries, business days are Monday through Friday, excluding weekends and public holidays.
Does this include the end date?
Yes, the end date is included in the count. For example, Monday to Friday inclusive is 5 business days.
Can I add my own holidays?
Yes. Use the Add Holiday button to include specific dates. Each holiday date must be a weekday to be excluded from the business day count.
Why Choose the Business Days Calculator?
The Business Days Calculator gives you exact dates and durations without manual counting. It calculates instantly in your browser, accounts for the cases people actually need, and keeps whatever you enter on your own device.