LoL Gacha Calculator

Calculate the cheapest RP strategy with least wasted RP for League of Legends and Teamfight Tactics gacha

Strategy Comparison

Optimal Strategy

Avg Cost

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Most Bonus RP for Pity

Avg Cost

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Probability Distribution

This graph shows cumulative probability of getting the item vs money spent for each strategy

Strategy Comparison

Strategy Steps Avg Cost Avg. RP Spend Cost at Pity RP Bought at Pity Avg. RP Wasted RP Leftover at Pity Difference from Best

Optimal Strategy minimizes avg cost (best on average). Most Bonus RP minimizes cost at pity (cheapest path to pity).

FAQ

What's the difference between Optimal Strategy and Most Bonus RP?

Optimal = lowest average cost (accounts for early drops). Most Bonus RP = cheapest path to pity (worst-case).

Why smaller packages sometimes?

If you get lucky early, you've spent less. The calculator balances early-drop savings vs bonus RP from big packages.

Works for TFT?

Yes, any Riot gacha using RP. Just enter the correct cost per pull and drop rate.

What's "wasted RP"?

Leftover RP after getting your item. The calculator finds package combos that minimize this.

RP Package Bonus Percentages

Larger RP packages include bonus RP. Here's the breakdown for EUR:

Package Total RP Base RP Bonus RP Bonus % RP per €

* Base RP calculated using the smallest package's RP/price ratio as reference