Business Days Calculator
Count business days between two dates or add working days to a date, excluding weekends and custom holidays. Free, in your browser.
Calculate business days
Count working days between two dates, or add working days to a date.
What this business days calculator does
Common use cases
- 1Setting a project deadline
- 2Calculating an SLA due date
- 3Planning delivery windows
- 4Counting working days in a period
- 5Scheduling around holidays
- 6Estimating turnaround time
Related tools
About business days
Business days (Monday–Friday, excluding public holidays) are how deadlines, SLAs and delivery estimates are usually measured — a "5 business day" turnaround is very different from 5 calendar days across a weekend.
This calculator counts the working days between two dates, or projects a due date by adding working days to a start date, skipping weekends and any holidays you list (as YYYY-MM-DD). It uses your browser's calendar, so no data leaves your device.
More Free Tools Where This Came From
This utility is one of dozens of free, no-login tools for DNS, email, SEO and developers — all instant and private.
HostCloud.in · Pune, India · Serving 34,987+ Websites Since 2020
Got Questions? We Have Answers.
What counts as a business day?
Monday to Friday, excluding any public holidays you list. Weekends are skipped automatically.
What can it calculate?
The number of working days between two dates, or a due date by adding a number of working days to a start date.
How do I exclude holidays?
Enter them as YYYY-MM-DD dates (comma or space separated) and they are skipped in the calculation.
Does it run in my browser?
Yes. It uses your browser's calendar; no data leaves your device.