How do I torque the flywheel bolts?

Here's the question. I have 2 torque wrenches: 1 is in inch/lbs, the other is in ft/lbs. I can use the ft/lb one on the flywheel, but the pressure plate only needs about 15ft/lbs I believe. Can I use the inch/lb wrench on the pressure plate, just multiply it by 12.........15ft/lbs * 12 = 180 inch/lbs?? I'm assuming it's a direct conversion, I just want to make sure. Thanks.