I've just noticed I've put UK measurements in the RPG, and will have to do a whole bunch of searching to expunge all of them.
For those not in the know, we have the worst measurement system on the planet. We switch between Imperial and Metric depending on context.
Petrol comes in litres, roads are measured in kilometres, but fuel-efficiency is measured in miles-per-gallon. People are measured in feet and stone, but buildings and rocks in metres and kilograms.