What is the standard height for a tub faucet valve?

When installing a bathtub faucet or tub & shower divertor valve, the bathtub spout must terminate above the flood level rim of the bathtub a minimum of 2"inches.This would place the stub out for the spout approximately 6"inches above the rim of the bathtub.Now just install the faucet or divertor high enough so the trim plate will not contact the spout.12 to 15"inches above the spout should be fine.