The tool that helped me with pot odds was this Poker Stars skin from Mike4066
http://www.flopturnriver.com/phpBB2/...highlight=skin

One has an odds chart on it! It lists the number of outs and the odds return your money should receive. e.g., 9=1:4 (Flush draw nine outs, one-to-four ratio) means that your dollar call should get you at least a $4 pot, or you fold. Right?

Without a chart, I do it in my head with a rough division -- "how many times does OUTS go into NUMBER OF CARDS I CAN'T SEE(APPROX), rounded and minus one." e.g., flush draw, "9 outs goes into about 45 cards (46, 47, 48 -- I'm gonna round it off anyway, number geeks) about five times -- easy! -- minus one, ok, equals 4 -- they want a dollar from me and the pot will be $4.50 after my bet? -- easy call!"