One pound (symbol: lb), the international avoirdupois pound, is legally defined as exactly 0.45359237 kilograms.
One ounce (symbol: oz) equals to one sixteenth of a pound avoirdupois. The avoirdupois ounce equal to approximately 28.3 grams and the troy ounce of about 31.1 grams. The ounce is a unit of weight used in most British derived customary systems of measurement.
The kilogram (symbol: kg) is the SI unit of mass. It is equal to the mass of the international prototype of the kilogram. This prototype is a platinum-iridium international prototype kept at the International Bureau of Weights and Measures. One kg is approximately equal to 2.20462262 pounds.
- How many kg are in 1257 pounds and 13 ounces?
- 1257 pounds and 13 ounces is equal to how many kg?
- How to convert 1257 pounds and 13 ounces to kg?
- What is 1257 pounds and 13 ounces in kg?
- How many is 1257 pounds and 13 ounces in kg?
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