How to determine the amount of wear left on a tire?

My rears are down to the wear bars, but the fronts still have some life left (I just don't know how to calculate how much), and I'm trying to decide if I should trade up the Contis and go for S03's all around, or get a new set of rear Contis and let those wear out with the old fronts (rears seem to go faster).

Any advice on how to determine how much I have left on the fronts, and therefore what I should do?

Most new passenger car tires are about 10/32" (5/16") deep. Legally in the US, 2/32" is considered a worn-out tire, so wear bars are level with the tread at this depth.

That should let you compute about how much life you have left on the fronts.

Unless you plan on pushing the car HARD, having different tires on different axels will not dramatically decrease the performance of the car. You're better off replacing the rears with whatever tire you plan on getting and replace the fronts with that same tire when the time comes, if you're truly unhappy with the Conti's.

That or stick with Conti's. They may suck *ss but they're CHEAP.

I would replace the Conti's . .. if you don't want to spend the $$ on Bridgestone SO'3, the Kumho's seem to have a great rating and it's abotu $200 less

I really think the Conti's take away from the driver's expereince with our cars. The car has so much to offer and the Conti's only let you see about 70% of it plus the steering response with the Conti's stink . . .