A standard One Piece manga volume in Japan is usually around 450 to 600 yen , with many common volumes landing near that range. A recent report also noted that the newest volume was priced 20 yen higher than usual because of its unusually large chapter count.

Quick estimate

  • Typical volume: 450–600 yen
  • Popular series like One Piece: often toward the higher end, around 600 yen
  • Special or expanded volumes: can go above that

What that means in practice

If you just want a rough everyday answer, say about 500–600 yen per volume for a new Japanese One Piece tankobon. Used copies can be much cheaper, but new bookstore pricing is usually in that standard band.

TL;DR

One Piece volume = roughly 500–600 yen in Japan.