Can this be converted to wind speed in knots or kph?

In relation to wind resistance on a marquee FIGURE OF 73.5 NMsquared was given. Can this be converted to wind speed/load in lbs or knots/kph

Could you repeat the whole question?

Convert miles per hour to knots?

From Online Conversion - All Speed and Velocity Conversions (http://www.onlineconversion.com/speed_all.htm)

1 mile/hour = 0.868 976 241 91 knot

Please, do not mess up the letters.

NM is one thing, nm is another thing.

nm is nanometre
Nm^3 means normal cubic metres, or newtons per cubic metres
NM is New Mexico...
Nm^2 could be Newtons per metre square, which is in fact pressure...