How do you convert 133 pounds to kilograms?

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.

The kilogram is a unit of mass equal to the mass of the International Prototype of the Kilogram (IPK), a platinum-iridium alloy block that is currently stored at the International Bureau of Weights and Measures in Sevres, France. If one remembers that one kilogram is approximately 2.2 pounds, the answer can be found by setting up a proportion and simply cross-multiplying. The equation is 2.2 lbs/1 kg = 133 lbs/x kg. Then, 133 divided by 2.2 is 60.38 kilograms.