RO Refine Calculator

Equipment type

Refinement Target

Item price at +0

🔨 Refine Cost

Equipment type

Starting refine level

Target refine level

Item price at +0

Regular only

All Regular

—

Enriched only

All Enriched

—

✓ Cheapest

Optimal

—

—

On failure: item destroyed, ore & fee lost. Restart = buy new item at +start price, retry from +start.

Risky step: C(n) = (ore+fee) + p·C(n+1) + (1−p)·(item + C(start))

Substitute C(n) = aₙ + bₙ·C(start) → C(start) = a_start / (1 − b_start)

Total = item + C(start) · Regular and enriched use their own respective NPC fees.