Pounds kilogrammes converter

You can view more details on each measurement unit: pounds or kg The SI base unit for mass is the kilogram. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds and kilograms. Type in your own numbers in the form to convert the units! You can do the reverse unit conversion from kg to pounds , or enter any two units below:. How to use the converter: 1. Enter the value you want to convert 2. Select the weight units and press the "Convert" button to see the results.

This is at least in part due to the inconsistencies and lack of coherence that can arise through use of centimeter-gram-second systems, such as those between the systems of electrostatic and electromagnetic units. The kilogram was originally defined as the mass of one liter of water at its freezing point in , but was eventually re-defined, since measuring the mass of a volume of water was imprecise and cumbersome.

A new definition of the kilogram was introduced in based on Planck's constant and changes to the definition of the second. Prior to the current definition, the kilogram was defined as being equal to the mass of a physical prototype, a cylinder made of a platinum-iridium alloy, which was an imperfect measure. This is evidenced by the fact that the mass of the original prototype for the kilogram now weighs 50 micrograms less than other copies of the standard kilogram.

This is a very easy to use pounds to kilograms converter. First of all just type the pounds lbs value in the text field of the conversion form to start converting lbs to kg , then select the decimals value and finally hit convert button if auto calculation didn't work. Kilograms value will be converted automatically as you type. The decimals value is the number of digits to be calculated or rounded of the result of pounds to kilograms conversion.