# # Temperature # F - fahrenheit # C - Celsius # K - Kelvin # F C *.55555-17.77777 F K *.55555+255.37222 C F *1.8+32 C K +273.15 K F *1.8-459.67 K C -273.15 dF dC *.55555 dF dK *.55555 dC dK *1 dC dF *1.8 dK dC *1 dK dF *1.8 # # Speed # knt - knots # m/s - meters/sec # mi/hr - miles/hour # km/hr - kilometers/hour # knt m/s *.5144 knt mi/hr *1.1508 knt km/hr *1.852 mi/hr knt *.86897 mi/hr m/s *.4470 mi/hr km/hr *1.60934 m/s knt *1.944 m/s mi/hr *2.23694 m/s km/hr *3.6 km/hr knt *.53996 km/hr m/s *.277777 km/hr mi/hr *.621388 # # Length # in - inches # ft - feet # nm - nautical miles # mi - miles # mm - millimeters # cm - centimeters # m - meters # km - kilometers # in mm *25.4 in cm *2.54 in ft *.083333 cm mm *10 cm in *.393701 mm cm *.1 mm in *.039370 ft m *.3048 m ft *3.28084 mi km *1.60934 mi nm *1.1508 nm mi *.868961 nm km *1.852 km mi *.62137 km nm *.53996 # # Precipitation # kg/m^2 - the same as mm # in # mm # cm # kg/m^2 cm *.1 kg/m^2 mm *1 kg/m^2 in *.039370 cm kg/m^2 *10 mm kg/m^2 *1 in kg/m^2 *25.4 # # Precipitation rate # kg/m^2/s - the same as mm/s # in/hr # mm/s # cm/hr # kg/m^2/s cm/hr *360 kg/m^2/s mm/hr *3600 kg/m^2/s in/hr *141.7323 # # Moisture content # kg/kg # g/kg # kg/kg g/kg *1000 g/kg kg/kg *.001 # # Pressure # in_HG - inches Mercury # mb - millibars # Pa - Pascals # in_Hg mb *33.85399 in_Hg Pa *3385.399 mb Pa *100 mb in_Hg *.0295386 Pa mb *.01 Pa in_Hg *2.95386e-4 # # Pressure tendency/ Vertical velocity # mb/3hr # Pa/s # mb/hr # mb/s # ub/s # Pa/s mb/hr *36 Pa/s ub/s *10 Pa/s mb/s *.01 mb/s ub/s *1000 mb/s Pa/s *100 ub/s mb/s *100 ub/s Pa/s *.1 # # Lapse rate # dK/m dK/km *1000 dK/m dC/km *1000 dK/m dF/km *1800 dK/m dF/ft *.59055 dK/m dF/mi *3118.11