Interactive AI Token Calculator
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Launch AI Token Calculator1. Standard English Conversions (1,000 Words)
For standard English prose, 1,000 words typically converts to 1,300 to 1,400 tokens. The exact number depends on word length: longer, technical words get split into more tokens, while short, common words stay as single tokens.
2. Technical Text vs. Fiction (1,000 Words)
If your 1,000 words is a technical manual or programming code, it will contain many structural characters (indentations, variables, brackets). This text will yield 2,000 to 3,000 tokens. In contrast, simple fiction prose yields around 1,250 tokens.
3. Tokenizer Vocab Size Influence
OpenAI's `o200k_base` has a larger vocabulary (200k tokens) than the older `cl100k_base` (100k tokens). Because it can represent larger sub-word groups, it compresses 1,000 words into fewer tokens (about 1,180 tokens on average), lowering your bill.
Frequently Asked Questions
Is 1000 words always 1300 tokens?
No. It averages 1,300-1,400 tokens for plain English, but can exceed 2,500 tokens for programming code, math formulas, or JSON.
How can I measure the exact token count of my text?
Use our AI Token Calculator to paste your text and get the exact token count across different tokenizers instantly.