What is the character limit for Twitter / X?

A standard X post is 280 characters. X Premium subscribers can post up to 25,000 characters, but only the first 280 are shown in the timeline before "Show more". Optimize for the 280 limit even on Premium.

What is the meta description character limit?

Google truncates meta descriptions around 155-160 characters on desktop and 120 characters on mobile. Aim for 150 characters to stay safe across devices.

How is byte length different from character length?

Plain ASCII characters are 1 byte each. Emoji and most non-Latin characters take 2-4 bytes in UTF-8. SMS limits and database fields often measure bytes, not characters — so a 160-character SMS with emoji can fail to send as a single message.

Does spaces count toward character limits?

Yes — for X, meta tags, and most social platforms. The "no spaces" count is useful for word-density work and password-strength estimates, but never for platform limits.

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Character Count Checker

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Characters

No spaces

Words

Bytes (UTF-8)

Platform limits

Twitter / X post0 / 280 (280 left)

Meta title (Google)0 / 60 (60 left)

Meta description (Google)0 / 160 (160 left)

Facebook post (recommended)0 / 63,206 (63206 left)

Instagram caption0 / 2,200 (2200 left)

LinkedIn post0 / 3,000 (3000 left)

YouTube title0 / 100 (100 left)

YouTube description0 / 5,000 (5000 left)

Pinterest pin description0 / 500 (500 left)

SMS (single message)0 / 160 (160 left)

Open Graph title0 / 60 (60 left)

Open Graph description0 / 110 (110 left)

Why platform character limits matter

Every platform truncates content at a specific character count. Going over the limit means:

Meta titles > 60 chars: Google truncates with “…” in search results — you lose your call to action.
Meta descriptions > 160 chars: Truncated on desktop, 120 on mobile.
X posts > 280 chars: Truncated in feed; only X Premium accounts can post longer.
SMS > 160 chars: Splits into multiple messages, each charged separately.
Open Graph > recommended: Facebook and LinkedIn truncate previews, hurting share CTR.

Characters vs. bytes — when it matters

For ASCII-only English text, characters = bytes. For everything else, bytes can be much higher:

An emoji (😀) is 4 bytes but 1 character.
Most accented Latin characters (é, ñ) are 2 bytes.
Chinese, Japanese, Korean characters are 3-4 bytes each.
SMS gateways measure bytes — a 160-character message with one emoji can fail to send as one part.

For meta tags, also check the meta tag analyzer for full SERP previews.

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