Variance calculator for poker cash games: calculates expected value, standard deviation and risk of ruin over any time frame.
The calculator shows for a given win rate and standard deviation, the chance of not winning at all, shows which swings are possible and calculates which bankroll is necessary to have a risk of ruin of 5% or less.
The win rate can simply be taken from any tracking tool. PT3, PT4 and HEM also provide the standard deviation.
PokerOlymp variance calculator
|Win rate in big blinds / 100 hands|
|Standard deviation in big blinds / 100 hands||
|Number of hands to simulate|
Change the values above and click calculate to generate new graphs.