Upgrade calculator
The blacksmith upgrades gear to +12. Success chances by target level: +1 100%, +2 100%, +3 100%, +4 100%, +5 75%, +6 50%, +7 40%, +8 30%, +9 20%, +10 10%, +11 100%, +12 100%. Gold is item level × 4 × the target level squared (doubled for ancients), and the materials scale with the square too. The blacksmith panel takes a freshly rolled item of your choice and upgrades it at the real odds, showing which stats each level raises. The upgrading guide covers when it is worth it.
| Step | Chance | Gold per try | Materials per try | Tries for 90% |
|---|---|---|---|---|
| +0 → +1 | 100% | 2,800 | 1 | |
| +1 → +2 | 100% | 11,200 | 1 | |
| +2 → +3 | 100% | 25,200 | 1 | |
| +3 → +4 | 100% | 44,800 | 1 | |
| +4 → +5 | 75% | 70,000 | 2 | |
| +5 → +6 | 50% | 100,800 | 4 | |
| +6 → +7 | 40% | 137,200 | 5 | |
| +7 → +8 | 30% | 179,200 | 7 | |
| +8 → +9 | 20% | 226,800 | 11 | |
| +9 → +10 | 10% | 280,000 | 22 | |
| +10 → +11 | 100% | 2,000,000 | 1 | |
| +11 → +12 | 100% | 4,000,000 | 1 |
A failed attempt still spends the gold and materials but never lowers the item's level.
11,253,267On average, counting the failed tries: each step's cost divided by its success chance.
Each level to +10 adds 5% of the rolled value to two modifiers in turn, starting with the implicit stats; +11 and +12 add 5% to all of them.