The Editor’s Manual
Free learning resource on English grammar, punctuation, usage, and style.
Use an en dash to show a range. You can also use the word “to” or the paired expressions “from-to” and “between-and.” A hyphen is used instead of an en dash in some styles.
A hyphen is a short dash used to connect words and indicate that they together carry a single meaning. It can also signify a missing word, divide a word at the end of a line, or show a range.
Use an en dash to show a range (2001–02) or to replace the word “to” (Boston–New York flight). Also use an en dash to show a connection across words (US–Canada border).