20,000 Leagues Under the Sea is a novel , not a length measurement. The title refers to the distance the Nautilus travels, not how deep it goes, and 20,000 leagues is roughly 60,000 miles, or about 96,500 kilometers.

What that means

A league is an old unit of distance, and in the context of the book it’s commonly treated as about 3 nautical miles. That makes the title about the journey’s span across the oceans rather than the submarine’s depth.

In plain terms

  • Book title: Twenty Thousand Leagues Under the Sea.
  • Actual meaning: a long trip through the ocean, not 20,000 leagues straight down.
  • Rough distance: about 60,000 miles / 96,500 km.

Tiny note

If you meant the book’s physical length, different editions vary by publisher and formatting, so there isn’t one single page count.