Why do character count and byte count differ?
Characters count visible letters; bytes depend on encoding. In UTF-8: English=1 byte, CJK=3 bytes.
Realtime teller voor tekens, woorden en bytes
Characters
No Spaces
Words
Bytes
Lines
Paragraphs
Character limits by platform
Characters count visible letters; bytes depend on encoding. In UTF-8: English=1 byte, CJK=3 bytes.
Yes, spaces are included in the character count.
Many systems have byte limits: SMS, database fields, API payloads.
You've probably been there -- writing a tweet, crafting a meta description, or filling out a form -- and hit a character limit you didn't see coming. A character counter tells you exactly how many characters, words, bytes, and lines are in your text so you never get caught off guard.
In UTF-8 encoding, an English letter takes up just 1 byte, but a Chinese, Japanese, or Korean character eats up 3 bytes. This matters when you're dealing with SMS limits (80 bytes), database fields, or API payloads where size is measured in bytes, not characters.
Google chops off your meta title after about 60 characters and your meta description after 160. Get it wrong and searchers see an ugly "..." instead of your carefully crafted message. Twitter gives you 280 characters -- not a letter more. If you're doing SEO or social media, knowing your exact character count is the difference between a polished post and one that gets awkwardly cut off mid-sentence.
Twitter/X: 280 characters. Instagram captions: 2,200. Facebook posts: a generous 63,206. YouTube titles max out at 100 characters, and LinkedIn gives you 3,000. For Google search results, keep meta titles under 60 characters and descriptions under 160. These numbers aren't suggestions -- go over them and your content gets sliced. Bookmark these limits and you'll save yourself a lot of editing.
Put your most important point first -- if your text gets cut off, at least the key message survives. Kill unnecessary adjectives (does it really need to be "very unique"?). Switch from passive to active voice: "The report was written by Sarah" becomes "Sarah wrote the report" and saves you 7 characters. Numbers work harder than words ("5" beats "five"). And keep a character counter open while you write -- it's the fastest way to stay within limits without guessing.