Measuring weight

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Measuring the weight or mass

The weight or mass of a car, generally could be expressed in two main units; the kilogram “kg” or the pound “lb”. You may find the weight expressed in “ton”/”metric tonne”, but don´t worry, here you will see how to convert between each unit.


The kilogram or kilogramme (SI symbol: kg), also known as the kilo, is the base unit of mass in the International System of Units and is defined as being equal to the mass of the International Prototype Kilogram (IPK), which is almost exactly equal to the mass of one liter of water. The avoirdupois (or international) pound, used in both the Imperial system and U.S. customary units, is defined as exactly 0.45359237 kg, making one kilogram approximately equal to 2.2046 avoirdupois pounds.

Vector-kilogram weight

After reading that, we have that 1 kg ≈ 2.2046 lb, so; to convert from kg to lb we just have to multiply the amount of kg by “2.2046”.


A car that weights 1000 kg (this is lightweight for actual production standards), just multiply “1000” by 2.2046;
1000×2.2046 ≈ 2204.6 => 2204.6 lb.

You can do the same dividing the amount of kg by 0.45359, which will bring you a very close result: 1000 ÷ 0.45359 ≈ 2204.6 => 2204.6 lb

But, from where is coming the “0.45359”?
This is because: 1 lb ≈ 0.45359 kg.


The pound or pound-mass (abbreviations: lb, lbm, lbm, [1] ) is a unit of mass used in the imperial, United States customary and other systems of measurement. A number of different definitions have been used, the most common today being the international avoirdupois pound which is legally defined as exactly 0.45359237kilograms.

With this, we have that:
1 lb ≈ 0.4535 kg.
1 kg ≈ 2.2046 lb

If you already know the amount of lb of something, and you want to convert it to kg, simply do the next:
Multiply the amount of lb by 0.4535
divide the amount of lb by 2.2046


1450 lb to kg:
1450 x 0.4535 657 kg.
1450 ÷ 2.2046 657 kg.


The tonne (SI unit symbol: t) is a metric system unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI.[1][2] To avoid confusion with the ton, it is also known as the metric tonne and metric ton in the United States[3] and occasionally in the United Kingdom.[4] In SI units and prefixes, the tonne is a megagram (Mg), a rarely-used symbol, easily confused with mg, for milligram.[5]

In the U.S., the National Institute of Standards and Technology supports the symbol “t” for the tonne.[6] The abbreviation “mt” or “MT” is also used in the U.S.[7]

1 tonne = 1000 kg.

The SI unit symbol for the tonne is “t”. Abbreviations for “tonne” (“metric ton” and “metric tonne”) include “T”, “mT”, “MT”, and “mt” (especially in the combination “mmt” or “MMT” for “million metric tons”), and “Te” (particularly in the offshore and nuclear industries).[citation needed] SI has no abbreviations for SI units, only symbols, and some of the abbreviations in use are actually SI symbols for other units: “T” is the SI symbol for the tesla and “Mt” is the SI symbol for megatonne.

To convert from metric ton, to kg, you have to multiply the amount of metric tons by 1000.
2 t= 2×1000 = 2000 kg.

Besides you can convert this to lb, if you want to convert metric tons, to lb directly, keep in mind that 1000 kg = 2204.623 lb. All you need is multiply the amount of metric tonnes by 2204.623:
2 t = 2×2204.623 4409.245 lb

To convert from kg to metric tonnes, divide the amount of kg by 1000:
3450 kg = 3450 ÷ 1000 = 3.45 t

to convert from lb to metric tonnes, divide the amount of lb by 2204.623:

7606 lb = 7606 ÷ 2204.623 3.4500 t

Below, this image, from Live For Speed (LFS), shows the difference of weight between the same formula car with the driver and a full tank of fuel included and excluded.


Posted on July 5, 2012, in General and tagged , , , , , , , , , , , , , , . Bookmark the permalink. 1 Comment.

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