a small car such as a Civic should be able to go 80K before the front pads need replaced, 120-150K before the rear shoes need replaced. I'd think a hybrid would be 20-40% longer because the normal brakes are used less as regenerative processes should soak up a lot of deceleration. That said, if you do mostly city stop and go, and are on the brakes a LOT, it could be as little as 40K. We have over 130K on our Sienna van and I'm sure all brakes are original.

2001 Classic Red Mazda Miata (+/- 30MPG)
1998 Toyota Sienna (+/- 23MPG)