Last updated October 13, 2026 · Report an error
Project deadlines and shipping estimates are usually quoted in business days, not calendar days — meaning weekends don't count.
This calculator counts exactly how many Monday-through-Friday business days fall between two dates.
How it works
Enter a start date and an end date. The calculator walks through every calendar day in the range (inclusive of both dates) and counts how many are weekdays versus how many fall on a Saturday or Sunday.
- Enter start date.
- Enter end date.
- Click Calculate to see your results.
Examples
A 7-day span
Any 7 consecutive calendar days always contain exactly 5 business days and 2 weekend days, regardless of which day of the week the range starts on.
Who should use it
- Estimating a project deadline quoted in business days.
- Calculating shipping or processing time estimates that exclude weekends.
Industry applications
- Project management and logistics
- Shipping and order fulfillment
Advantages
- Simple, fast weekday count between any two dates.
- Shows the weekend day count alongside the business day total for context.
Limitations
- Doesn't exclude public holidays, which vary too widely by country and industry to build in reliably.
Common mistakes to avoid
- Assuming the result already excludes public holidays — it only excludes Saturdays and Sundays.
- Forgetting that both endpoints are included, which can be one day more than expected for exclusive counting conventions.
Best practices
- If your deadline needs to account for public holidays too, manually subtract any holidays that fall within the range from this calculator's result.
Tips
- When a deadline is quoted as "X business days," remember to manually add extra days for any public holidays that fall within the range, since this calculator only excludes weekends.
Frequently asked questions
Yes, with no signup and no limit on how many date ranges you check.
No — this calculator counts Monday through Friday only; it doesn't exclude public holidays, since those vary by country, region, and industry.
Yes — both the start date and end date are included in the count if they fall on a weekday.
The calculator automatically treats the earlier date as the start, regardless of which field you entered it in.