DocomintBusiness Days Calculator
Count the number of weekdays (business days) between two dates, excluding weekends.
Counts only Monday-through-Friday days between two dates — useful for estimating shipping windows, project timelines, or a work-days-remaining count, since a flat calendar-day count overstates actual working time by roughly 2 out of every 7 days. Doesn't account for public holidays, which vary by country and calendar.
Example: August 2026 (Aug 1–31) contains 21 business days and 10 weekend days across its 31 total days — a useful sanity check before promising a delivery "within 15 business days" that spans a full calendar month.
How it works
- Enter a start date and end date
- Press Calculate
- The number of business days and weekend days between them appear instantly, computed on your device
Frequently asked questions
Does this account for public holidays?
No — it counts Monday through Friday as business days regardless of holidays, since holiday calendars vary significantly by country, region, and organization. Subtract known holidays from the result manually for your specific context.
How are the start and end dates themselves counted?
Both the start date and end date are included in the count if they fall on a weekday — so a Monday-to-Friday range counts as 5 business days, not 4.
Is my numbers uploaded anywhere?
No — Business Days Calculator runs entirely in your browser using JavaScript/WebAssembly. Your numbers is never sent to a server.