Calculator
Count working days between two dates, with weekends automatically excluded and an option to also skip common holidays.
This counts each calendar day between your two dates and excludes Saturdays and Sundays. If you leave the holiday checkbox on, it also skips a small default set of fixed-date holidays (New Year's Day, July 4th, and Christmas) — a reasonable approximation, though it won't know about moveable holidays like Thanksgiving or region-specific public holidays, since those vary by country and even by state or province.
For a simpler count that includes every calendar day, use the Date Difference Calculator instead.
Related
Count every calendar day instead of just working days.
Shift a date forward or backward by a day count.
Check whether a specific date is a weekend.