The Forge Calculator Examples: 2-Ore, 3-Ore & 4-Ore Combos

July 15, 2026

Three worked examples below, using placeholder multiplier values — always substitute your own current in-game or wiki-sourced multipliers, since these change with updates. Each uses the same quantity-weighted math the The Forge calculator runs. For the formula itself, see the forging terms glossary.

Example 1 — A Simple 2-Ore Mix

12 units of a 2.5x-multiplier ore + 8 units of a 1.5x-multiplier ore

Combined Multiplier = (12×2.5 + 8×1.5) ÷ (12+8) = (30 + 12) ÷ 20 = 2.10x

Since the higher-multiplier ore makes up 60% of the total quantity, the combined multiplier lands closer to 2.5x than to the midpoint of 2.0x — exactly what the quantity-weighted formula predicts.

Example 2 — A 3-Ore Mix With a Trait Check

10 units of a 3x-multiplier ore + 6 units of a 1.8x-multiplier ore + 4 units of a 1.2x-multiplier traited ore (total quantity 20)

Combined Multiplier = (10×3 + 6×1.8 + 4×1.2) ÷ 20 = (30 + 10.8 + 4.8) ÷ 20 = 2.28x

Trait share = 4 ÷ 20 × 100 = 20%

At 20%, the trait clears the 10% minimum to appear on the item but falls short of the 30% threshold for the strongest version of the effect — see how to hit trait thresholds without sacrificing multiplier for how to adjust the quantity split to reach the full 30% if that’s the goal.

Example 3 — A Full 4-Ore Combo (Even Split)

10 units each of a 2x, 1.8x, 1.5x, and 1x-multiplier ore (total quantity 40)

Combined Multiplier = (10×2 + 10×1.8 + 10×1.5 + 10×1) ÷ 40 = (20+18+15+10) ÷ 40 = 1.58x

With four ores split evenly, the combined multiplier lands almost exactly at the plain average of the four multipliers (1.575x plain average vs. 1.58x quantity-weighted here) — an even split is the one case where quantity-weighting and simple averaging produce nearly the same result. As soon as the quantities become uneven, the two methods diverge, which is exactly the mistake covered in common The Forge calculator mistakes.

Try Your Own Combination

Enter your own ore names, current multipliers, and planned quantities into the The Forge calculator — up to 4 ore slots — to see the exact combined multiplier and any trait composition before committing rare ore to a real forge.