Minecraft Anvil Cost Calculator

A survival anvil refuses anything from 40 levels up. Each trip through the anvil doubles an item’s penalty — 0→0, 1→1, 2→3, 3→7, 4→15, 5→31, 6→63 — so combine books together first and put the expensive item through as few times as you can.

Formula: total = enchantment cost + (2^left − 1) + (2^right − 1) + 1 if renamed. Survival refuses 40 or more. The output’s prior-work count is max(left, right) + 1. The enchantment cost is each carried-over enchantment’s multiplier × its resulting level, from the table below. A grindstone resets prior work only by removing every non-curse enchantment.