Hero Leveling Calculator
Enter your hero’s current level, target level, and rarity to get an XP book breakdown. The calculator shows how many Giant, Large, Medium, and Small XP books you’ll need — allocated optimally (largest books first to minimise waste).
Hero Leveling Calculator
Estimate XP books needed to level any hero from any starting point.
Levels gained
49
Total XP needed
5.49M
| XP Book | XP each | Amount |
|---|---|---|
| ● Giant XP Book (XL) | 100.0K | 54 |
| ● Large XP Book (L) | 20.0K | 4 |
| ● Medium XP Book (M) | 5.0K | 2 |
| ● Small XP Book (S) | 1.0K | 0 |
⚠ Values are estimates based on community data and typical gacha game scaling — not officially verified. Max levels per rarity are also estimated. Actual costs may vary.
How to read the results:
- Giant XP Book (XL) — Use these first; 100,000 XP each.
- Large XP Book (L) — 20,000 XP each.
- Medium XP Book (M) — 5,000 XP each.
- Small XP Book (S) — Remainder; 1,000 XP each.
The calculator uses the largest books first to show you the minimum number of total items needed.
Fan-made guide. Not affiliated with River Game HK Limited. Game data may be inaccurate.