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 Subject: 14) How do I convert from mph to knots (or m/s), from inches of mercury to mb (or hPa), or convert degrees of latitude to miles (or kilometers) ? For winds:1 mile per hour = 0.864 nautical miles per hour (knots)1 mile per hour = 1.609 kilometers per hour 1 mile per hour = 0.4470 meter per second 1 knot = 1.853 kilometers per hour 1 knot = 0.5148 meter per second 1 meter per second = 3.6 kilometers per hour
For pressures:1 inch of mercury = 25.4 mm of mercury = 33.86 millibars= 33.86 hectoPascals For distances:1 foot = 0.3048 meter1 nautical mile = 1.1515 statute miles = 1.853 kilometers 1° latitude = 69.057 statute miles = 59.969 nautical miles = 111.137 kilometers For longitude the conversion is the same as latitude except the value is multiplied by the cosine of the latitude.
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