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Token Calculator
A token calculator turns model-specific token counts into practical limits and cost estimates. Choose the exact model, enter separate input and expected output totals, and apply that model’s current input and output rates. Do not substitute word count or file size for an actual token count.
What a token calculator needs
A useful calculation starts with the provider and exact model because tokenization, context limits, and prices are model-specific. It also keeps input and output tokens separate because providers can charge different rates for tokens sent to a model and tokens generated by it.
What the result means
The token total helps determine whether a request can fit within the selected model’s context window. When current model rates are supplied, the same totals can be used to estimate the text-token portion of an API request. The provider’s recorded usage remains the source for the actual completed request.
Why a word-count conversion is not enough
Tokens are model vocabulary pieces rather than words. Punctuation, spaces, code, structured data, uncommon terms, and different languages can split differently. Images, files, tools, schemas, message formatting, and reasoning can add usage that a plain-text estimate does not include.
Use the right page
- Use the Token Cost Kit homepage to calculate token-based API cost.
- Use the OpenAI Token Counter to count visible text with an OpenAI encoding.
- Read Counter Token if you are unsure whether your search refers to AI tokens, card-game counters, or historical counting tokens.