How to Convert Pounds to Kilograms
To convert pounds to kilograms, you can use the standard equation by dividing the number of pounds by 2.2046 to calculate the kilograms. Use a calculator to make it easy on yourself! Alternatively, you can multiply the number of pounds by 0.45, which will also give you the number of kilograms. No matter which method you use, be sure to round your answer to the hundredths place. For example, if your answer is 22.67985, you should round that to 22.68 kilograms.
Divide the number of pounds by 2.2046 to use the standard equation. For example, if you want to convert 50 pounds to kilograms, divide 50 by 2.2046, which is equal to 22.67985 kg. To convert 200 pounds to kilograms, divide 200 by 2.2046, which is equal to 90.71940 kg. Multiply the number of pounds by 0.454 as an alternative. If you find multiplication easier to do in your head than division, you can use a different conversion factor to convert pounds to kilograms. For instance, to convert 100 pounds to kilograms, multiply 100 by 0.454, which is 45.4 kg. Round your answer to the hundredths place. In most instances, you won't need to use more than 3 numbers after the decimal point. So, if your answer is 22.67985, round that to 22.68. As another example, round 90.71940 to 90.72. Avoid rounding the number of pounds before you convert them to kilograms. Multiply the number of kilograms by 2.2046 to use the traditional formula. For instance, to convert 75 kilograms to pounds, multiply 75 by 2.2046, which is 165.345 lbs. To convert 350 kilograms to pounds, multiply 350 by 2.2046, which is 771.61 lbs. Divide the number of kilograms by 0.454 if you find that easier. If you prefer, you can use division to convert kilograms to pounds. For example, if you want to convert 25 kilograms to pounds, divide 25 by 0.454, which is 55.066 lbs. Or, divide 500 kilograms by 0.454 to get 1,101.321 lbs. Remember that there will be more pounds than kilograms. Because 1 kilogram is equal to 2.2046 pounds, there will always be more pounds than kilograms once you do the conversion. Keep this in mind and recheck your calculations if you ever have more pounds than kilograms. For instance, 30 kilograms is equal to 66.138 pounds and 1,000 kilograms is equal to 2,204.6 pounds. In both examples, there are more pounds than kilograms. 
Divide the number of pounds by 2.2046 to use the standard equation. Multiply the number of pounds by 0.454 as an alternative. Round your answer to the hundredths place. Multiply the number of kilograms by 2.2046 to use the traditional formula. Divide the number of kilograms by 0.454 if you find that easier. Remember that there will be more pounds than kilograms. 