Approximate Tokens, Words and Characters Calculator for LLM's

Tokens can be thought of as pieces of words. Before processing, the input is broken down into tokens that don't necessarily align with word boundaries.

For a detailed explanation of tokens and how to count them, see the OpenAI Tokenizer Guide.

How this calculator works

This calculator uses the following approximations based on English text:

1 token ≈ 0.25 characters (or 4 characters ≈ 1 token)
1 token ≈ 1.6 words
1 word ≈ 2.5 tokens

Note: These are rough estimates based on testing with various tokenizers. Actual token counts may vary depending on the specific text and model used. For exact token counts, please use OpenAI's Tokenizer tool.

Calculate from Text

Note: All calculations are performed locally - no text leaves your browser.

Text processing:

Paste your text in the area above
Adjust any of the numbers below (tokens, words, or characters) to trim the text
The original text is preserved in memory - you can adjust numbers multiple times
When text is trimmed, a "Copy to clipboard" button will appear

Characters: 0
Words: 0
Tokens: 0

Calculate from Tokens

Tokens:

Words: 0
Characters: 0

Calculate from Words

Words:

Tokens: 0
Characters: 0

Calculate from Characters

Characters:

Tokens: 0
Words: 0

Tool made by Denis Shiryaev, shir-man.com

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