Home » Teaching Resources » Converting Units

Converting Units


Converting meteorological units

Download PDF Version

It might be useful for you to know the conversion of units commonly used in meteorology for use in the classroom.

Fahrenheit to Celsius
To convert a Fahrenheit temperature reading to Celsius: first deduct 32 and then multiply the value you get by 5/9.

e.g. 59°F = (59-32)x(5/9) = 27×5/9 = 15°C.

Celsius temperature reading to Fahrenheit
To convert a Celsius temperature reading to Fahrenheit: first multiply by 9/5 and then add 32.

e.g. 20°C = (20×9/5)+32 = 36+32 = 68°F.

To convert inches to millimetres
1 inch = 25.4 mm

To convert millimetres to inches
1 mm = 0.03937 inch

To convert wind-speed units:
[kt = knot; m/s = metres per second; kph = kilometres per hour; mph = miles per hour]
1 kt = 0.515 m/s and 1 m/s = 1.94 kt;
1 kt = 1.853 kph, so 1 kph = 0.54 kt;
1 kt = 1.152 mph, so 1 mph = 0.87 kt.

Start exploring

Latest from blog

Other resources you might like…

Ideas and lesson plans to enhance the learning and teaching of weather studies in primary schools.
Where is the wind found? When does the wind occur? How long does it last for? Do people like this wind?