1 sr = (180/π) 2 deg 2 = 3282.8 deg 2 = 0.1591 hemispheresĪcre, are, arpent, barn, centiare, circular inch, circular mil, hectare, kanal, marla, rood, section, square centimeter, square foot =, square inch = , square kilometer, square metre, square mile = section =, square mil=square thou =, square millimeter, square yard =, square rod=pole=perch =, township, yardland.Hemisphere, solid angle, square degree =, square radian = steradian, millisteradians , 1 g 0 = 9.80665 m/s 2 = 32.17405 ft/s 2 = 386.1 in/s 2 = 35 kph/s = 22 mph/sĪrc minute = minute of arc, arc second = second of arc, circle = circumference = revolution = turn, degree =, gradian =gon =, milliarcsecond, quadrant, radian, sign ,.Unit symbols are given in Accelerationįoot/second 2, metre/second 2, galileo = gal = centimeter/second 2 =, inch/second 2, standard gravity, kilometer per hour/second, miles per hour/second The default values are from the first example above. A cross-multiplication for the conversion can be expressed as: = 0.204 m H 2O Example - How many square feet is is 132 square miles?įrom the first line in the area section in this page 1076.39 sq ft = 3.86102x10 -5 sq mi. You can convert between units by using cross-multiplication.Įxample - How many meter water column is 2000 Pa?įrom the Pa line in the pressure section in this page 1 Pa = 1.020x10 -4 m H 2O. Magnitude of a Physical Quantity (Power or intensity relative to a specified or implied reference level).Electromotive Force, Voltage difference.If you got at least half of those, you are doing a great job! With a bit more practice and you will be converting SI units with ease. Using these two pieces of information, we can set up a dimensional analysis conversion.ĩ55\text Kilogram refers to 10 3 grams, while megagram refers to 10 6 grams. We will need two pieces of information from the table above. Let’s try converting 955 kilograms to megagrams. Here is an example of a one-step conversion between the SI system prefixes. Of course, you can always refer back to the tables above. Memorizing the different prefixes and their meanings makes it a lot easier to do these conversions, so try to memorize as many as you can. ![]() Interested in an Albert school license? Converting SI UnitsĬonverting between the different SI system prefixes is an essential science skill that requires practice. ![]() For example, speed can be measured in meters per second, or in kilometers per nanosecond. The different base units can also be combined to form what are called derived units. Instead, you would use kilometers or even megameters. For example, you wouldn’t measure the distance from LA to New York in meters, the base unit. ![]() ![]() These base SI units can be combined with any of the prefixes to create units that are most appropriate for what is being measured. These reference tables show the different bases and prefixes used to designate metric units with the SI system.
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