Both, nautical mile and metre are derived from earth’s dimensions: One nautical mile is an arc second at the equator, i.e. its circumference is 360·60 NM. One metre originally was 1/40000 of the circumference through the poles (or 1/10000 of the distance from a pole to the equator).
YSK only three countries on Earth use the Imperial system of measurement, Myanmar, Liberia, and the U.S. The hostility is not needed.
It’s very easy if you remember that are 3 feet in a yard, 22 yards in a chain, 10 chains in a furlong, and 8 furlongs on in a mile!
but what if they’re above water and we need to use nautical miles?
Those are actually much saner: 10 cables in a nautical mile and 100 fathoms in a cable.
Both, nautical mile and metre are derived from earth’s dimensions: One nautical mile is an arc second at the equator, i.e. its circumference is 360·60 NM. One metre originally was 1/40000 of the circumference through the poles (or 1/10000 of the distance from a pole to the equator).
Ah, now it makes sense!