Conversions can be done either with the "->" conversion operator or with the equivalent "convert" function. The function has three parameters: a quantity, a unit to convert from and a unit to convert to. Likewise the conversion operator uses three values: the quantity and unit to convert from are placed on the left side of the operator while the unit to convert to goes to the right side.
The basic unit of speed is the meter per second (mps). All units of speed are expressed in terms of this base unit and so measurements can be converted from any one of the following units to any other.
10 mps -> knots = 19.438445
convert(10; mps; knot) = 19.438445
10 mps -> kph = 36
convert(10; mps; kph) = 36
10 mps -> mph = 22.369363
convert(10; mps; mph) = 22.369363
10 mps -> kines = 1,000
convert(10; mps; kine) = 1,000
10 knots -> mps = 5.1444444
convert(10; knot; mps) = 5.1444444
10 kines -> mps = 0.1
convert(10; kine; mps) = 0.1
10 mph -> mps = 4.4704
convert(10; mph; mps) = 4.4704
10 kph -> mps = 2.7777778
convert(10; kph; mps) = 2.7777778
10 knots -> mph = 11.507794
convert(10; knot; MPH) = 11.507794
10 mph -> kph = 16.09344
convert(10; MPH; KPH) = 16.09344