Tokens per page

How Many Tokens Per Page?

Estimating tokens for a PDF, book, or report? Enter the page count to get tokens instantly.

Short answer

About 650 tokens per page — one page ≈ 500 words ≈ 650 tokens.

Standard estimate for a text page. Dense academic pages run higher (up to ~800); sparse pages run lower (~400).

Pages

Estimated tokens

≈ 6,500

10 pages × 650 tokens ≈ 5,000 words

Pages to tokens cheat sheet

PagesTokens (approx.)
1 page650
10 pages6,500
50 pages32,500
100 pages65,000
300 pages (a book)195,000
500 pages325,000
1,000 pages650,000

Assumes ~500 words per page at 1.3 tokens per word. Scanned PDFs sent as images cost 2–3× more than text extraction — extract the text first when you can.

FAQ

How many tokens are on one page?

About 650 tokens for a standard text page (~500 words). Dense pages with small type can reach ~800; sparse pages drop toward ~400.

How many tokens is a 300-page book?

Roughly 195,000 tokens of plain text — about 150,000 words. That fits inside a 200K context window with a little room to spare.

Do PDFs cost more tokens than plain text?

Yes, if the PDF is sent as images. A page rendered for vision costs roughly 1,100–1,500 tokens before any text is read — 2–3× the text-only cost. Extracting the text first is much cheaper.

How many pages fit in a 128K context window?

About 195 pages of text (128,000 ÷ 650), minus whatever you reserve for the model's answer.

Does formatting change the tokens per page?

Yes. Tables, code blocks, footnotes, and heavy punctuation all tokenize less efficiently than plain paragraphs, pushing a page above the 650 average.

How do I count tokens for my exact document?

Copy the text into the free token calculator on the homepage for an exact count, or use the context window checker to see if it fits your model.