Words to Tokens Calculator — Convert Text to LLM Tokens

Paste or type your text and the calculator estimates token count instantly. Don’t have the text yet? Switch to "Enter a count" and type a word number instead — no placeholder text needed. As a rule of thumb, 1 token ≈ 0.75 words (or ~4 characters) for English text. The exact count varies by model tokenizer — switch between GPT-4o, Claude, and Gemini to compare.

Approximately 1,333 tokens for typical English prose. The ratio is roughly 1 word = 1.33 tokens, though code, non-English text, and special characters can be significantly higher. Select Simple mode → "Enter a count" and type 1000 in the Words field to get this instantly for any word count and model, without pasting any text.

Simple mode converts a word/token count or analyses pasted text. Composer mode breaks prompts into labelled sections (system prompt, context, examples, user message, output schema) for a detailed breakdown. Optimize mode adds token-reduction suggestions for text you paste in.

Each AI model uses its own tokenizer — a set of rules for splitting text into chunks. GPT-4 uses cl100k_base, which differs from the tokenizers used by Claude and Gemini. This calculator supports multiple tokenizers so you get accurate counts for the model you are targeting.

Yes. Use the one-click handoff button in results to open the LLM Token Cost Calculator with your token counts pre-filled, so you can immediately see the API cost for your prompt.

Yes. In guest mode you can export your calculations to JSON. Signing in adds PDF and CSV export. Click the export button to download your results — useful for record-keeping, sharing, or importing into other tools.

Yes. Your calculation history is saved automatically. As a guest you can keep up to 50 calculations per workspace on your device. Sign in for free to keep up to 100 per workspace and access them from any device.

Yes. The Token Converter is free to use with no sign-up required. A free account adds more calculation history, multiple workspaces, and access to your saved data from any device.