Difference between _mi and _miUS units

[KeithB]

convert(1_mi, 1_ft) = 5280_ft
convert(1_miUS, 1_ft) = 5280.01056002_ft

[Dieter]

(04-20-2017 09:51 PM)KeithB Wrote:  convert(1_mi, 1_ft) = 5280_ft
convert(1_miUS, 1_ft) = 5280.01056002_ft

Right. The US survey mile and international mile differ by approx. 3,2 mm resp. a relative difference of 2E–6 which is explained here.

Dieter

[KeithB]

Thanks.

I guess it only matters if you are a marathoner. That extra .277 feet can be a killer. 8^)