About increments

I'm a little confused about time increments. Is there a way to judge how long a rapid game will last considering increments? For example, is 15|10 the same as G45? How much time will 10|10 take? So far, I've followed advice to only play G30 or longer, but G30 tournaments are hard to come by. My club, however, conducts a 10|10 tournament every month. Is there some formula that will predict how long a time control with an increment will take?

Games obviously vary in length, so for these types of exercises , they generally assume a number of moves like 40.

With that assumption, you can easily compute how long a game with increment might last.

So with 10|10, you get 2*10 minutes  + 2*40*10 seconds. That works out to just over 33 minutes.

15|10 works out to just over 43 minutes.

And so on.

Thanks for responding. I think I see. So, 10|10 works out to be 33 minutes for the whole game, or 16.5 minutes per side. Right?

It depends on the number of moves in the game and how much time each player uses out of their 10 minutes - eg, one player might use 9, the other might use 3, then you add to that, 10 secs. for every move made.

Here's the approximate total time for 10/10 games if both players use nearly their whole 10 minutes :--

20 move game  - 26m,40s.

40 move game - 33m, 20s.

60 move game - 40m.

Thank you!