I'm on board for making things make sense, and the metric 10-base does a pretty good job of it:
10mm=1cm, 10cm=1dm, 10dm=1m, 10m=1dam (dekametre), 10dam=1hm (hectometre), 10hm=1km
Makes sense to my mathematically-challenged mind.



Latin prefixes for units smaller than a metre:
Deci- means 10; 10 decimetres make a metre.
Centi- means 100; 100 centimetres make a metre.
Milli- means 1,000; 1,000 millimetres make a metre.

Greek prefixes for units larger than a metre:
Deka- means 10; a dekametre is 10 metres.
Hecto- means 100; a hectometre is 100 metres.
Kilo- means 1,000; a kilometre is 1,000 metres.
Alas for homebrewtj, in the construction industry the imperial system is well-entrenched. Canada has been metric since... 1976? *Internet search* ...
No, 1975 on April Fool's day

(a dubious day to start IMO), Canadian weather reports were given in Celsius.

At -40º, it doesn't matter whether it's measured in Fahrenheit or Celsius.
Anyway, metric's been in use in Canada for nearly a half-century and the construction industry still uses "board-feet" of "2x4"s for studs that are 16" apart... etc.


I'm a
victim survivor of that changeover and while I prefer Celsius now I still prefer 0-60mph

,

quarter-mile times

, and MPG

— I guess 0-100km/h isn't too bad, I can wrap my brain around that, but... 1/4-km times is nuts as is LITRES/KM

; but travel-distances in km are okay, too. After 5 decades, my brain is still stuck between the two systems.
The US

,
Libya Liberia

and Myanmar

are the only holdouts for imperial measurements, and even then the US throws a

curveball with its own version of gallons, where a US-gallon

is about 20% smaller than an imperial gallon

, and other otherwise-imperial units such as tonnage

(imperial-ton 2,240 lbs vs US-ton 2,000 lbs) etc...
Niggling details:
— A "meter" is a device used to measure something.

— A "metre" is a unit of measurement.
Let's not even talk about "


daylight saving time


" ...
