This could be used on the turn as well to get the estimate about your probability to improve on the river. Similarly, by multiplying your outs by 2, you will get a number showing how likely you are to improve your hand on the coming street. If you are on the flop just multiply your outs by 4 and you will get an approximate percentage how likely you are to improve your hand till the river by seeing both cards. There is quite an easy way to get the answer very fast and we can call it “the rule of 2 and 4”.

However, you have a shortcut to apply correct poker math on the go and quickly calculate the probability of hitting your hand while playing. Therefore, I will explain a simple rule, which will help you a lot with Texas Holdem odds. It could take some time to remember all of the information regarding poker hands odds and outs.