The Complete Guide to Dashes

A Brief History of the Dash

Before digital typography, printers had a set of physical metal type pieces for dashes. Each piece had a specific width, purpose, and name drawn from the typeface’s em — the fundamental unit of measurement equal to the point size of the font. An em in a 12pt font is 12 points wide; an en is half that, 6 points.

The problem began with the typewriter. To keep things simple, typewriter designers gave typists a single key: the hyphen-minus (-). It was a compromise character that stood in for hyphens, minus signs, en dashes, em dashes — everything. This habit carried over to early computers, where keyboard real estate was precious.

Unicode changed the game by assigning dedicated code points to every typographic character that ever existed. Today, you have access to the full arsenal — if you know where to look.

The Hyphen-Minus –

The hyphen-minus is the most common character on a keyboard and the most frequently misused dash in existence. It is not a true hyphen, not a minus sign, and it carries no specific semantic meaning beyond “some kind of horizontal stroke.”

Its advantage is ubiquity: it appears on every keyboard on Earth, it works in every programming language, URL, and command-line interface, and no one will complain if you use it in casual writing. Its disadvantage is that it means nothing specific — the reader (and software) must infer meaning from context.

The True Hyphen ‐

The true hyphen (U+2010) is semantically unambiguous — software knows it is specifically a hyphen and not a minus sign or dash. It looks nearly identical to the hyphen-minus but carries proper meaning.

When to hyphenate

Hyphens connect words that function together as a single modifier before a noun. Once the noun appears, the hyphen usually disappears:

The En Dash –

The en dash is the workhorse of ranges. Its primary job is to mean “to” or “through” when connecting two values, dates, times, or places. It is wider than a hyphen — approximately the width of the letter “n” in the font — and narrower than the em dash.

Ranges: dates, pages, times, scores

Whenever you are expressing a span from one value to another, the en dash is correct. No spaces around it in this usage:

# Dates
The First World War (1914–1918) changed everything.
# Page numbers
See chapter 3, pp. 87–112.
# Times
Office hours: 9:00–17:00.
# Sports scores
England won 3–1 against France.
# Train / flight routes
The London–Paris Eurostar departs at 08:32.
❌ Using hyphens instead:
1914-1918  (technically wrong, widely accepted)

Complex compound adjectives

When one element of a compound adjective is itself a multi-word phrase or a proper noun, use an en dash instead of a hyphen. The en dash signals that the relationship is between larger units:

The Em Dash —

The em dash is the most dramatic punctuation mark in English prose. It is twice as wide as an en dash, and it carries real expressive weight — a pause, a pivot, an interruption. Used well, it creates tension and rhythm. Used poorly, it becomes a verbal tic — appearing everywhere — making the text feel breathless — and hard to read.

Four main uses

1. Parenthetical aside — a stronger, more emphatic alternative to parentheses or commas:

The report — all 400 pages of it — landed on her desk at midnight.

2. Abrupt break or interruption — the sentence stops suddenly:

He was about to reveal the answer — but then the lights went out.

3. Amplification or explanation — a colon’s dramatic cousin:

There was only one thing she wanted — the truth.

4. Interrupted speech in fiction:

“I just wanted to say—”
“Save it,” he said.

Spaces: American vs British style

The Figure Dash ‒

The figure dash is a niche character with a very specific purpose: it is the same width as a numeral in fonts that use tabular (fixed-width) figures. This means columns of numbers align perfectly, even when some cells contain a dash where a number might otherwise appear.

It is also the typographically correct choice for phone numbers. A hyphen-minus in a phone number will subtly mis-align digits in a table; a figure dash will not.

The Horizontal Bar ―

The horizontal bar (also called a quotation dash or dialogue dash) is used extensively in French, Greek, Russian, Spanish, and many other languages to introduce direct speech in fiction — where English would use quotation marks.

― Shall we go? she asked.
― It is too late now, he replied.

In some typographic traditions, the horizontal bar is also used to introduce an attribution below a quoted passage — functioning like a visual underscore to the quotation.

Other Notable Dash Characters

Unicode contains a handful of additional dash-like characters worth knowing:

How to Type Each Dash

None of the “true” dashes appear directly on standard keyboards. Here’s how to insert each one across different systems:

TL;DR Cheat Sheet