Sailor Piece Trading logoSailor Piece⚓ Captain's Log

Sailor Piece Trade Calculator

Put two stacks of items side by side. We'll total the values, flag dead demand and dropping items, and tell you whether the trade is fair, a win, or a loss. Share the URL — it captures the full comparison so a trade partner sees the same thing you do.

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How we judge trades

  • Fair — the two totals are within 10% of each other. Most traders will close this without argument.
  • You win / You lose — the gap is more than 10% in one direction.
  • We raise warnings when your side contains items with dead demand or currently-dropping stability, because headline value overstates what partners will actually give up for them.
  • Prices refresh every 10 minutes. If a trade is borderline, check the specific item pages for the latest trend.