Imperial time units: here come the nunes

I caught an episode of Top Gear the other day. The rather excellent Jeremy Clarkson was talking about ‘driving very economically’ with an big Audi and mentioned all kinds of mpg (miles per gallon) measurements. For me, as I have lived in the metric system for all my life, conversion from ‘mpg‘ to ‘l/100km’ (liter/100 km) proved to be non-trivial. Some research revealed the following stunning data:

Length:
1 mile = 8 furlong 1 furlong = 40 rod 1 rod = 5.5 yard 1 yard = 3 feet 1 foot = 12 inch
Which gives us: 1 mile = 1760 yard or 1.609344 km
Weight:
1 stone = 14 pounds 1 clove = 7 pounds 1 pound = 16 ounces 1 ounce = 16 drams
Which gives us: 1 stone = 224 ounce
Volume:
1 gallon = 4 quart 1 quart = 2 pint 1 US pint = 16 US fluid ounces but(!) 1 Imperial pint = 20 Imperial fluid ounces
Which gives us: 1 Imperial gallon = 160 Imperial fluid ounces or 4.54609188 liter

Two observations:

I propose the following:

💬 science 🏷 brexit 🏷 decimal 🏷 england 🏷 gallon 🏷 imperial 🏷 pounds 🏷 stone 🏷 uk 🏷 units