A useful rule of thumb
Use the 0.75 English words-per-token estimate for fast planning, not as a substitute for a tokenizer.
Tokens to Words
Convert a rough AI token budget into an English word estimate, then use a real local tokenizer when you need to measure text exactly.
o200k_base
0 / 1,000,000 characters
Token visualization
Local token pieces update 0.5 seconds after you stop typing.
Paste text above to see how the selected local encoder splits it into tokens.
Local calculation. Your text stays in this browser. Nothing is uploaded or stored by Tokens Calculator.
Measure text precisely
The calculator above turns your own text into an o200k_base or cl100k_base token count in the browser.
No content collection
Word and token inputs stay on-device, even when you use a sensitive draft or internal prompt.
Convert a rough count
Use the common English-text rule of thumb: one token is about three quarters of a word. Your actual ratio depends on language, formatting, code, and the model tokenizer.
For a real prompt, use the text calculator above. It counts the exact local BPE tokens for the selected encoding instead of relying on a word average.
How it works
- 01
Start with a rough budget
Enter either a token count or a word count in the converter to get an English-text planning estimate.
- 02
Paste the real text when available
Use the text box above for the prompt or document you actually want to measure.
- 03
Choose the relevant encoding
Switch the model selector to see the local o200k_base or cl100k_base count for the text.
Tokens to Words FAQ
How many words is one token?
A common English-text rule of thumb is one token for about 0.75 words, or roughly 1.3 tokens per word. Real ratios vary by language, punctuation, whitespace, code, and tokenizer.
Is the tokens to words converter exact?
No. It is a quick planning conversion. For a precise result, paste the real text into the local calculator and choose the encoding that matches your model reference.
Why are code and non-English text different?
Tokenizers split text into subwords, punctuation, spaces, and code fragments. Those patterns do not align with word boundaries, especially across languages and structured data.
Does conversion text leave my browser?
No. Both the quick converter and the text calculator run locally. Tokens Calculator does not upload the values or text you enter.
Explore more token tools
Every tool runs token counting in your browser. Keep your text local while you move between calculators and guides.
Not affiliated with Anthropic, OpenAI or Google.