Hyphens and dashes

Hyphen 

For most writers, the hyphen’s primary function is the formation of certain compound terms. The hyphen is also used for word division, which is briefly explained here. Never use a hyphen in place of an en dash or an em dash.

En dash 

The en dash (–) is slightly wider than the hyphen (-) but narrower than the em dash (—). The typical computer keyboard lacks a dedicated key for the en dash, though most word processors provide a means for its insertion.

Em dash 

The em dash is perhaps the most versatile punctuation mark. Depending on the context, the em dash can take the place of commas, parentheses, or colons⁠—in each case to slightly different effect. Notwithstanding its versatility, the em dash is best limited to two appearances per sentence. Otherwise, confusion rather than clarity is likely to result. Do not mistake the em dash (—) for the slightly narrower en dash (–) or the even narrower hyphen (-). Those marks serve different purposes and are further explained in other sections.

Taken from: https://www.thepunctuationguide.com/brackets.html