Character Limit Checker
Check if your text fits within platform character limits for Twitter, SMS, Google Ads and more.
About Character Limit Checker
Live character counter that shows how your text fits within limits for all major platforms and ad formats simultaneously.
About this calculator
Paste your text and see at once whether it fits the limits of Twitter/X, SMS, Google Ads, meta titles and descriptions, and other platforms. The count updates as you type, with a pass or fail for each platform.
Good for ad copy, bios, captions and SEO snippets where one extra character can get a headline cut off.
How to use it
- Paste your text.
- Read the character and word counts.
- Check each platform's bar for fit.
Common limits
X (Twitter) post 280. SMS 160 characters in GSM-7 or 70 with Unicode. Google Ads headline 30 and description 90. Meta title about 60 characters and meta description about 155. Instagram caption 2,200. LinkedIn post 3,000. YouTube title 100 characters. Platforms change limits, so confirm the current figure.
Worked example
A 150-character text
| X post (280) | fits |
| SMS (160) | fits, 10 left |
| Google Ads description (90) | too long by 60 |
| Meta description (about 155) | fits |
Tips and common mistakes
- Write to the shortest limit first and expand.
- SMS with emoji or non-English characters drops to 70 characters per segment.
- Google may truncate titles by pixel width, not characters.
- Keep the key message in the first 100 characters.
- Re-check after editing; hidden characters can add to the count.
Frequently asked questions
What is the character limit on X?
280 for standard posts.
What is the SMS limit?
160 characters per segment, or 70 with Unicode.
How long should a meta description be?
About 150 to 160 characters.
What is the limit for Google Ads headlines?
30 characters.
Do spaces count?
Yes, on all these platforms.
Do emoji count as one character?
Not always; some count as two.