Work Days Calculator
Free work days calculator that counts business days between two dates. Exclude weekends and US or UK public holidays automatically.
About Work Days Calculator
Count Business Days Between Any Two Dates
This work days calculator tells you how many business days (Monday through Friday) fall between a start date and an end date. It also shows total calendar days, weekend days, and a weeks-plus-days breakdown.
Exclude Public Holidays
Choose between US federal holidays or UK bank holidays to automatically subtract public holidays that fall on weekdays. The US preset includes 11 holidays (New Year's Day, MLK Day, Presidents' Day, Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, and Christmas). The UK preset includes 8 bank holidays including Easter-based dates.
Visual Calendar Strip
For ranges up to 90 days, a colour-coded calendar strip shows every day in the range. Working days are green, weekends are grey, and holidays are amber. Hover over any square to see the full date.
For a pure date difference without the business-day focus, try the date difference calculator. To figure out how many hours you worked, use the hours calculator.
Frequently Asked Questions
How are working days calculated?
Working days are Monday through Friday. The calculator counts all days in your date range, subtracts weekends (Saturday and Sunday), and optionally subtracts public holidays that fall on weekdays.
Which holidays are included?
You can choose US public holidays (11 federal holidays) or UK bank holidays (8 standard bank holidays including Good Friday, Easter Monday, and the spring/summer bank holidays). Select "None" to count all weekdays without holiday exclusions.
Does it handle different years correctly?
Yes. If your date range spans multiple years, the calculator includes the correct holidays for each year. Moveable holidays like Easter and Thanksgiving are computed for each year in the range.
What is the calendar strip view?
For date ranges of 90 days or fewer, the calculator shows a visual strip where each day is a small coloured square. Green squares are working days, grey are weekends, and amber are holidays. This makes it easy to see the pattern at a glance.
What does the "weeks and days" breakdown show?
It divides the total number of calendar days into complete weeks and remaining days. For example, 17 days would show as "2w 3d" meaning 2 full weeks plus 3 extra days.