[Mike Haven]

... so if you have a four-flush with two cards to come you need pot odds of 65.03/34.97 = 1.9 to 1

but don't get suckered here into thinking that if you are only getting 1.9 to 1 with another bet to come if you miss your flush on the first card of the two that you should always take the bet - in that situation you should see if you are getting the right odds for hitting on the first card : 38 to 9 = 4.2 to 1

the 1.9 to 1 applies to receiving both cards at once for one bet - say, if you or your opponent are going all-in on that bet