Two calculators that use the same holiday data and the same counting rules as the reference pages on this site: weekends out, public holidays out, and every deducted date listed so you can see exactly what was removed.
The working days calculator counts the business days between any two dates in 18 countries and shows the public holidays it removed. The date calculator answers the other common question: if a deadline is “30 business days from today”, what date is that?
Prefer a static answer? Every country has a page for each month and year: business days by country.