Gen Scrolls Calculator
Plan how many scroll attempts you need to hit a target number of successes, then inspect the exact win probability with linked controls and a live binomial curve.
Distribution
Binomial
At least K successes in N attempts
Presets
Linked Outcome Controls
Move either slider. The other snaps to the matching exact outcome for the same inputs.
Probability snaps to the nearest reachable value because repetitions are integers.
Formula Visualization
The calculator uses the exact binomial tail probability for getting at least the target number of successes.
Exact, not simulated
Current Inputs
Winning Probability by Attempts
The highlighted point is the currently selected attempt count.
Outcome Summary
Exact Win Probability
0%
Chance to get at least the target number of successes.
Scroll Attempts
0
Attempt count for the current linked-slider position.
Expected Successes
0
Set inputs to see the combined outcome.