The International System of Units

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Mole&nbsp;(abbreviated as mol).

It is used to compute for the quantity of substance within an object.

Candela&nbsp;(abbreviated as&nbsp;cd).

The candela is used to measure the brightness or luminous intensity of an object.&nbsp;

Ampere&nbsp;(abbreviated as&nbsp;A).

Amperes or more commonly called amps, is used to measure the electric current.

S.I. stands for&nbsp;Systeme Internationale, which is also known as the International System of Units. First proposed in 1670 by Gabriel Mouton, an astronomer and mathematician, the S.I. was standardized in Republican France in 1790. You may not notice this but we always use this as a form of measurement. SI units have been accepted around the world as an ideal replacement for other metric systems that may confuse people. Today, people from all countries follow this metric system, and that includes me and you!

How do we measure stuff like length or heat? How did we decide that weight should be kilograms? Or that time should be measured in seconds? A wise old king tells his subjects how he has decided to have a “uniform system” of measurement (SI Units) so everybody is on the same page!

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The S.I. or The International System of Units

A long time ago, people from different countries had different ways of measuring things,. They need to measure what they buy and exchange, but not having a common and correct way of measuring was a big problem. Finally, scientists created units of measurement that can replace all other existing ways we measure objects. This is how the SI of units of measurement was born. Now you can easily compare one object with another by using the SI unit for mass (kilogram), or know how far it is to go to a certain place just by using the SI unit for length or distance (meter).

What do we measure in S.I. Units?

The S.I. is made up of seven basic units of S.I., we can now compute for mass, length, time, temperature, amount or quantity of a substance in matter, brightness of an object or luminous intensity and the flow of electric current.

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2.54 cm long 30.5 cm long 91.4 cm long 1,609 m long

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1 ounce (oz) 1 pound (lb) 1 stone

Unit Converter

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In Europe, we use the International System of Units (or SI), while in the USA and Great Britain people also use the Imperial System, which comes from ancient Roman and Anglo-Saxon measurement units. In the USA, the system of measurement is also called US Customary Units.

Length Weight (mass) Capacity (volume)

Meter Kg Litre

Inch, Foot, Yard, Mile Ounce, Pound, Stone Pint, Quart, Gallon

The International System of Units

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Kilogram&nbsp;(abbreviated as&nbsp;kg).

Meter&nbsp;(abbreviated as&nbsp;m).

The meter is used to calculate distance or length.

The kilogram is used to compute for mass, which is the measurement of the quantity of matter in any given object.

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Metric Units of Measurement

Units of measurement

SI Base Units

Second&nbsp;(abbreviated as&nbsp;s).

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The second is the basic unit of measurement for time.

Kelvin&nbsp;(abbreviated as&nbsp;K).

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The kelvin is used to compute the amount of heat in a certain object

Name

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