Units Used in Meteorology
Meteorological Unit Conversions
Length
1 meter (m) = 39.4 inches (in) = 3.28 feet (ft)
1 kilometer (km) = 1000 m = 0.62 miles (mi) = 3280 ft
1 nautical mile (nm) = 1.15 (mi) = 1852 m
Speed
1 m/s = 3.60 km/hr = 2.24 mi/hr = 3.28 ft/s = 1.94 knots (nm/hr)
Volume
1 m3 = 1x106 cm3 = 1000 liters (L) = 264 US Gallons
Time
1 day = 86,400 s
1 year = 365.25 days = 3.15x107 s
Pressure
1 millibar (mb) = 100 Pascals (Pa)
1 atm = 1013 mb = 760 mmHg = 29.9 inHg = 14.7 PSI
Temperature
°F = °C x 1.8 + 32
°C = (°F - 32) / 1.8
Degrees Celsius |
Degrees Fahrenheit |
30 | 86 |
25 | 77 |
20 | 68 |
15 | 59 |
10 | 50 |
5 | 41 |
0 | 32 |
-5 | 23 |
-10 | 14 |
-15 | 5 |
-17.8 | 0 |
-20 | -2 |
-25 | -11 |
-30 | -20 |
-35 | -29 |
-40 | -38 |
-45 | -47 |
-50 | -56 |
-55 | -65 |
-60 | -74 |
-65 | -83 |