Calculate pull probabilities, expected copies and pulls needed for a target confidence level.
Calculate pull probabilities, expected copies and pulls needed for a target confidence level.
Yes. Gacha Probability Calculator is free to use online and does not require an account.
Yes. Gacha Probability Calculator uses a responsive browser interface for modern phones, tablets and desktop computers.
The calculator or test logic runs in your browser. The tool itself does not need to send the values you enter to a CrazyGamesUp server.
The tool uses the formulas and browser measurements described in the interface. Game-specific settings, engines, hardware, drivers and patches can still affect real-world results.
It is useful for gamers who want to measure, compare, plan or troubleshoot gacha probability values quickly.