Long-context planning
Claude is often used for longer documents and multi-step reasoning. Token counts help you decide whether to keep full context, compress it, or divide the content into smaller requests.
Anthropic prompt planning
Claude Token Calculator
Plan Anthropic Claude prompts, long documents, and chat transcripts with local token estimates and cost comparison.
Short answer
A Claude token calculator helps you judge how much text a Claude request will consume before you send it. This matters for long-context workflows such as document review, research synthesis, customer-support analysis, and coding tasks. Paste the final prompt or document excerpt, review the token count, then compare estimated input and output cost against other model families.
Formula
Estimated Claude request cost = input tokens / 1,000,000 x input price, plus expected output tokens / 1,000,000 x output price.
Use exact token counts for final estimates. Word count is useful for planning, but token count is what context windows and API billing depend on.
Common examples
- Estimate a long document analysis prompt before sending it to Claude.
- Check whether a chat transcript should be summarized or split.
- Compare cost for drafting, analysis, coding, and research workflows.
Prompt cleanup
Repeated instructions, large examples, and pasted documents can grow quickly. Use the count to trim repeated text while keeping the parts that affect answer quality.
Cost comparison
The same token count can be compared across OpenAI, Anthropic, and Google models so you can choose the right balance of cost, context, and capability.
Claude Token Calculator FAQ
Is this page only for Claude?
It focuses on Claude planning, but the calculator and pricing comparison can also help compare other LLM providers.
Should I count input and output tokens separately?
Yes. Input tokens come from the text you send, while output tokens depend on the answer length you request or expect.
Does the calculator store document text?
No. The public browser calculator processes text locally and does not store the pasted content.
Use the calculator
The main calculator at https://token-calculator.net/ is the fastest way to measure your exact text, compare model cost, and visualize token-sized text pieces in the browser.