Try farming in Canada. I will actually use liters per acre as a unit to measure in liquid fertilizer into a sprayer, spray it at gallons per acre and drive the sprayer at kph with a pump pressure in PSI on a field that was surveyed in rods.

It’ll get harvested by a machine that has all metric bolts and uses a 30’ cutting platform, the grain will be measured in bushels on the yield monitor and sold in $/bushel with the selling agent but the contract will be in tonnes and delivered that way.