Gacha Pull Calculator

Summary

Enter your pull rate, pity cap, and number of pulls to see the exact probability of getting the featured item.

How it works

1. Enter the base per-pull rate for the featured item (e.g., 0.6% for Genshin Impact).
2. Enter the pity cap — the pull count at which the game guarantees the item (e.g., 90 for Genshin).
3. Enter how many pulls you plan to make.
4. The calculator computes cumulative probability accounting for the pity guarantee.
5. Key milestones (pulls needed for 50%, 75%, 90% chance) are shown alongside an interactive chart.

Use cases

• Plan how many primogems or in-game currency to save before pulling on a banner.
• Calculate the probability of getting a 5-star character in Genshin Impact, Honkai: Star Rail, or similar games.
• Decide whether to spend saved pulls now or wait for a more desirable banner.
• Understand how hard pity changes the effective odds versus the raw base rate.
• Compare pull efficiency across different gacha games with different pity caps.
• Estimate how many pulls are needed for a 90% or 99% success probability.
• Settle debates about whether saving for pity or pulling immediately is the better strategy.
• Calculate multi-account or co-op farming goals for gacha items.

Frequently Asked Questions