Character limits run the internet: 280 for a post, 160 for an SMS, 60 for a page title, and a rejection message when you guess wrong. The catch is that “a character” is not one thing, an emoji can count as one, two, seven, or eleven depending on who is counting, which is why your count and the platform’s sometimes disagree. This guide covers the limits that matter and the counting rules underneath them, with our free character counter doing the live tally.
In this guide
The limits that actually matter
| Destination | Limit | Notes |
|---|---|---|
| X (Twitter) post | 280 characters | links count as 23 regardless of length |
| SMS | 160 (or 70, see below) | the famous trap of this family |
| Page title tag | about 60 characters | longer titles get cut in search results |
| Meta description | about 155 to 160 | a display limit, not a hard one |
| Instagram caption | 2,200 | only the first lines show uncollapsed |
| YouTube title | 100 | about 70 visible in most layouts |
| LinkedIn post | 3,000 | collapses after the first few lines |
Two kinds of limits hide in this table: hard ones that reject or truncate (SMS, X), and display ones where the text survives but stops being seen (titles, descriptions, captions). Hard limits need exact counting; display limits need front-loading, the part people see must carry the message.
What counts as a character
Here is the part most counters do not explain. Take the family emoji: it displays as one symbol, but it is built from 7 Unicode code points (four people joined by invisible joiners), which encode as 11 UTF-16 units and 25 bytes. A platform may count any of these layers, so the same message can be 19, 25, or 29 “characters” in different systems, all of them honestly. Accented letters play a smaller version of the same game: é can be stored as one code point or as e-plus-accent, identical to the eye and different to the counter, the same lookalike issue from the text cleanup pillar. When a count looks wrong, the Unicode character counter shows the layers explicitly, which turns the mystery into a number you can reason about.
The SMS trap: one emoji halves your message
SMS is the sharpest edge in the table. A message using only the basic GSM character set fits 160 characters; include even one character outside it, an emoji, a smart quote, certain accented letters, and the entire message re-encodes in a wider format with a 70-character limit. One 🙂 turns a comfortable message into three billed segments, which is why business SMS arrives strangely quote-less and emoji-free: someone did the math. The practical rule for anything sent by SMS at scale: plain apostrophes, plain quotes, no emoji, and a counter check before the campaign goes out.
Words: the softer count
Word counts run essays, abstracts, and ad copy, and they are softer than character counts because “a word” is defined by separators: counters split on spaces, so hyphenated terms count as one, “a lot” counts as two, and numbers count as words. Different tools disagree by a few words per thousand on the same text, which never matters for a 500-word minimum and always matters for a 100-word strict abstract; for the strict cases, use the counter of the system that will judge you. The dependable rule of thumb connecting the two counts in English: average words run about five letters plus a space, so characters ≈ words × 6, good enough to estimate whether 300 words of draft will survive a 2,000-character field.
Writing to a limit without pain
- Write first, count second: drafting against a ticking counter produces padded sentences. Draft freely, then cut to fit.
- Cut by structure, not syllables: the second adjective, the parenthetical, the duplicate point, each buys ten characters; vowel-dropping buys three and costs credibility.
- Front-load for display limits: the title’s first 50 characters and the description’s first line do the work; what truncation removes should be elaboration, not the point.
- Count where lists are involved with the item counter, since “10 hashtags max” is a list limit wearing a character costume.
Frequently asked questions
Do spaces count as characters?
In virtually every platform limit, yes. “Characters without spaces” exists mainly in word-processor statistics and translation billing, where it has its own conventions.
Why does X say my 270-character post is too long?
Links count as 23 characters flat, and some characters (including many emoji) count double in its scheme. The platform’s own counter is the referee; external counts are estimates.
How many words is a page?
The old convention is about 250 to 300 words per printed page at standard spacing, and roughly 500 words per single-spaced page. For anything graded or paid by the page, confirm the expected formatting first.
Why did my newline count change between tools?
Line breaks are one character on some systems and two on others (a historical carriage-return pairing), so multi-paragraph text counts slightly differently across tools. Near a hard limit, count in the destination system.