How to use the LLM Token Counter
- 1. Paste your textAdd a prompt, document or chat history.
- 2. Set your limitsEnter your model's context window and, if you like, its current price.
- 3. Read the estimateSee the token range, share of the window and estimated cost.
How the estimate is made
Language models read text as tokens, which are word pieces. Each model family has its own tokenizer, so the exact count depends on the model. This page does not ship any model's tokenizer, so it gives an estimate using two widely quoted rules of thumb for English: about 4 characters per token, and about 0.75 words per token. It averages the two and counts non-English characters more heavily, because scripts like Devanagari usually need more tokens.
Worked example: the default sentence has 81 characters and 12 words. 81 ÷ 4 ≈ 20 and 12 ÷ 0.75 = 16, so the estimate is ≈ 18 tokens, with a range of 16 to 20.
Using it well
- Budget, don't bill. Use the estimate to see whether a document roughly fits, then check exact counts with your provider's official tokenizer or token-counting API.
- Leave room for the answer. The context window covers your input and the model's output together.
- Code and numbers often use more tokens than plain English of the same length.
- Prices change often. The cost box starts empty on purpose. Copy the current per-million-token input price from your provider's pricing page.
Your text never leaves the browser; nothing is sent to any AI service. Shorter, clearer prompts cost less and often work better. Structure yours with the prompt template builder, and estimate hardware for running models yourself with the GPU VRAM calculator.
Frequently asked questions
Why not show an exact count?
Exact counts need the specific model's tokenizer files. Rather than pretend, this tool shows a clearly marked estimate and a range.
Does it work for Hindi text?
It gives a rough estimate, but Indian-language text varies a lot between models. Treat it as a first guess only.
Is the LLM Token Counter free?
Yes, the LLM Token Counter is free. The first time you see your first estimate, you are asked for your name and WhatsApp number once. After that, this and every other Uncodemy tool opens straight away without the form.