Claude Token & Usage Calculator

A token is a small piece of text the model reads or writes - roughly ¾ of an English word. Hindi, Bengali and other non-Latin scripts usually need several times more tokens for the same meaning, so the same message in Bengali uses more of your limit than in English.

It's an estimate. Claude's tokenizer isn't available in the browser, so the tool uses measured averages per script and shows a low–high range. For exact counts, developers can use Anthropic's token counting API. Answer length and thinking can't be known before you send the prompt.

Anthropic's help centre says Pro gives at least five times the free plan's usage per session and gives an example of roughly 45 short messages per 5-hour window on a lighter model. Long chats, big files, heavier models, thinking and tools use the limit much faster.

Every time you send a message, Claude re-reads the whole conversation. In a long chat even a one-line question can cost tens of thousands of tokens. Starting a new chat for a new task saves a lot.