LLM cost calculator

Estimate token costs with your own rates.

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LLM cost calculator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Updated 2026-09-20

LLM cost calculator explained

Calculate token charges from your own model rates and usage estimates. Input and output token totals are priced separately per million tokens, then combined across rows. The tool supplies no current provider pricing.

Next: JSON formatter

A worked example

At an example input rate of 2 per million and output rate of 8 per million, 1,000,000 input tokens and 200,000 output tokens cost 3.60 in the chosen currency.

Before you use the result

Scenario arithmetic, not a quote. Enter current rates yourself and add any caching, batch, tool-call, tax or hosting charges separately. Fractional costs remain unrounded in the JSON result.

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ToolOctopus. “LLM cost calculator.” Updated 2026-09-20. https://tooloctopus.com/llm-cost-calculator.

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