SIMPLE TOOL

UTF-8 Byte Counter

Calculate the actual UTF-8 bytes used by Korean, English, numbers, and emoji.

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Enter or paste your text

Your text is never sent to a server.

Characters with spaces
0
Characters without spaces
0
Words
0
Lines
0
UTF-8 bytes
0
Sentences
0
No limit

Why are character count and byte count different?

A character limit and a byte limit are not the same measurement. A standard Korean syllable commonly uses three bytes in UTF-8, while emoji and combined characters can use more. Paste the exact final text into a byte-limited field and check the UTF-8 total.

Korean, English, and emoji

Different characters use different amounts of data. Check the UTF-8 byte total rather than character count alone.

Final submission check

Line breaks and special characters added while copying can affect the total, so calculate the final text again before submitting.

PRACTICAL GUIDE

How to use this counter

  1. Paste or type the final text you want to use.
  2. Review the count that matches the destination rule.
  3. Revise the text and check it again before submitting.

Frequently asked questions

How many bytes is a Korean character?

A standard Korean syllable commonly uses three bytes in UTF-8. Total bytes also depend on spaces, symbols, and emoji.

How many bytes is an emoji?

Emoji byte size varies by character and composition. This tool calculates the actual UTF-8 bytes of the text you enter.

Why is byte count different from character count?

Character count is the number of characters. Byte count is the amount of data used to store or transmit the text.

Related tools

Main character and byte counter