See How Easy the Metric System Is!
Speed & Velocity Comparison Guide.
Metric vs Inch Pound Measures
kilometers per hour vs miles per hour
Here are some rough formulas for converting between Metric and Inch Pound measures:
km/h = 1.6093 * miles/h
km = miles * 1.6093
meters = feet / 3.2808
inches = centimeters / 2.54
inches = millimeters / 25.4
Here is a picture of a Legacy Lawrence Expressway sign with Legacy numbers painted on the pavement. The numbers on the pavement are hard to read during rain and at night.
The sign just says “50” and doesn’t show what units of measure are used.
The next picture is altered.
It is the same location with a modern speed limit sign including new pavement numbers..