Flush draw chances?

What are the chances to hit your flush if your holding two cards of the same suit and on the flop two of the cards of that suit hit?

outs one card% Two card% one card odds two card odds
9 19% 35% 4.1 1.9 Flush
You got 10 to 1 odds in hitting a flush, if i remember right.

10:1?WOWnobody wouldever chase if it were that hard.

4 to a flush on the flop odds are 1.9:1 by the river.

Well that's my odds of hitting a flush, i can only hit it well i am holding one suited card
I am lucky if i hit a flush in one game, with 100 hands seen.

If you flop four to the flush, you have a 35% chance of making your hand by the river.

On the turn:
9 outs x 4 = 36%

On the river:
9 outs x 2 = 18%

Using 4 and 2...

Thanks all