Skip to content
Convertto
tokenscharacters

Tokens to Characters Converter

Convert tokens to characters for LLM prompts. 1,000 tokens ≈ 4,286 characters.

To convert tokens to characters, enter your value above and the result appears as you type. 1 token ≈ 4.29 characters, so multiply by 4.29. 100 tokens is about 428.6 characters, and 1,000 tokens is about 4,286 characters. These ratios are measured by encoding representative English prose with the o200k_base vocabulary, not estimated by the "divide by four" rule of thumb — switch the content type to code, JSON or CJK and the numbers change substantially.

Runs in your browser

About converting TOKENS to CHARACTERS

1 token ≈ 4.29 characters, so multiply by 4.29. 100 tokens is about 428.6 characters, and 1,000 tokens is about 4,286 characters. A token is the unit both the context window and the invoice are measured in. Common words are one token; rarer words split into two or three. Characters are exact and easy to count, which is why the "divide by four" shortcut caught on — and why it misleads on anything that is not English prose.

Convert CHARACTERS to TOKENS insteadOpen the full Words to Tokens Converter

Share this converter

Related tools

LLM Token CounterCount tokens with the real BPE vocabulary, see every token coloured in place, and compare the count across models.Context Window CalculatorPaste a document and see which models it fits inside, how much of each window it fills, and what is left for the reply.AI API Cost CalculatorWork out what a prompt costs per call, per day and per month, and compare the same workload across every major model.LLM Model ComparisonEvery current model side by side: price per million tokens, context window, max output, modalities and cache rates.LLM Stream ParserPaste a raw server-sent-event stream and get the reconstructed message, tool calls, usage and stop reason.Prompt Injection SanitizerStrip invisible carriers, neutralise instruction-like markup and fence untrusted content before you paste it into a prompt.