Q:

# What is 40 pounds in kilograms?

A:

Forty pounds is equal to 18.1437 kilograms. There are 2.2046 pounds in a kilogram. To convert pounds to kilograms, divide the number of pounds by 2.2046.

A kilogram is a unit of measurement for weight or mass. It is 1,000 grams. A kilogram was originally defined as the mass of 1 liter of water at 32 degrees Fahrenheit. In 1889, a platinum-iridium alloy block was manufactured to be used as the official prototype for the weight of a kilogram. The prototype is kept at the International Bureau of Weights and Measures located in France. Until 1799, the unit of 1,000 grams was called a grave.

## Similar Questions

• A:

Forty kilograms equal approximately 88 pounds. There are online tools that aid with metric to US customary unit conversions as well as an equation for manual calculations.

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• A:

Two hundred and five pounds is equal to 92 kilograms. Metric Conversions provides the formula to convert pounds to kilograms, as kg = lb / 2.2046. Since 1 kilogram is equal to 2.2046 pounds, simply divide the value of 205 pounds by 2.2046 to reach the answer of 92 kilograms.

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• A:

One pound is approximately equal to 0.454 kilograms. Multiplying 133 times 0.454 equals 60.38 kilograms. Alternatively, it may be easier to remember that 1 kilogram is approximately 2.2 pounds.