A paragraph is a group of sentences about one idea, and good paragraphing is what turns a wall of text into something people actually read. This guide shows you how to break text into paragraphs, how long they should be, and how to fix text that arrives unformatted.
What makes a good paragraph
A paragraph holds one idea, stated in a topic sentence, developed in a few supporting sentences, and closed cleanly. On screens, paragraphs should be short: two to four sentences is a good range for web reading. Long paragraphs hide their structure, and readers skim past them. Short paragraphs create white space, which rests the eye and signals a new idea.
Step-by-step: format text into paragraphs
- Read the text and mark every place the idea changes. Each change starts a new paragraph.
- Break the text at those marks, with a blank line between paragraphs.
- Check each paragraph’s length. If one runs past five sentences, look for a second idea hiding inside it and split again.
- Check each paragraph’s first sentence. It should tell the reader what the paragraph is about.
- Remove filler sentences that repeat the topic without adding anything.
- Read the first sentence of every paragraph in sequence. Together they should summarize the whole text.
Spacing rules
Use a blank line between paragraphs, not an indent, for web and email text. Indents work in print books but vanish in many online editors. Never use both a blank line and an indent; it doubles the gap and looks like a section break. Keep spacing consistent across the whole document.
Fixing common messes
Text pasted from a PDF often arrives as one giant paragraph, or as dozens of single-line paragraphs. For the giant paragraph, split at idea changes as above. For single-line fragments, join lines that belong to the same sentence, then group sentences into paragraphs. Text copied from a chat app often has a line break after every sentence; joining those into paragraphs restores normal reading flow.
Try it the faster way
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Prefer the full page? Open the paragraph formatter directly.
Quick tips
- One idea per paragraph, two to four sentences each for screen reading.
- Use blank lines between paragraphs for web text.
- Read first sentences in sequence as a summary check.
Paragraphing is editing, not decoration. One idea per block, short blocks for screens, and a first-sentence summary test will make any text dramatically easier to read.
Frequently asked questions
How long should a paragraph be online? Two to four sentences is a good range for screen reading. Print can handle longer paragraphs, but screens reward shorter ones, since readers scroll and skim. If a paragraph passes five sentences, check for a second idea inside it.
Should I indent paragraphs or use blank lines? For web, email, and documents that move between apps, use blank lines. Indents disappear in many editors and render inconsistently. For print books, indents are traditional. Pick the convention your medium expects.
Can a paragraph be a single sentence? Yes, for emphasis or pacing. A one-sentence paragraph draws the eye and adds punch. Used sparingly it is powerful; used constantly it makes text feel choppy.
Worked example
Take a wall of text covering two ideas: morning routines and evening routines, run together in one block. Split it where the topic changes: one paragraph for mornings, one for evenings, each two to four sentences. Read the first sentence of each paragraph in sequence: together they should summarize the whole text. If they do not, a paragraph is missing its topic sentence or holding two ideas. This first-sentence test is the fastest quality check in all of paragraph editing.