EV & SizingFree utility

Risk-of-Ruin Approximation

Estimate the chance of finishing below a ruin threshold over repeated bets.

risk of ruinbankroll riskdrawdown

Inputs

Adjust live

Calculator setup

Enter your assumptions and this tool will update immediately.

Result

Instant

Primary output

1.764%

Approx. ruin probability

Live resultReady to copy

Notes

This assumes independent repeated bets at the same edge and sizing.

Frequently Asked Questions