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First take the weight in pounds and multiply by 453.59. The resulting number is the weight in grams. To convert grams to kilograms, simply divide by 1000. Or, an easier option is to take the weight given in pounds and multiply by 0.45359. In this case the answer is 8.16 kilograms.

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14y ago

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More answers

18 pounds is how many kilograms?

Here are some unit conversion equalities that you should memorize.

454 grams = 1 lb. Mass

2.54 cm = 1 inch Length

946 ml = 1 qt. Volume

18 lb * 454 g/lb. * 1 Kg / 1000 g = ______lb.

Notice I inverted the mass conversion equality, other wise the units would not cancel.

(18 * 454 ) ÷ 1000 = ______.

Notice in this method the units cancel.

lb/lb g/g only Kg is left.

I prefer this method because if the units do not cancel, I have done something wrong. I have divided when I should have multiplied.

For example If I go in reverse:

10 Kg * 1000g/ Kg * 454 g/lb = I do not get lb.

Notice the grams do not cancel

10 Kg * 1000g/ Kg * 1 lb/454g = _____ lb.

The Kg and g does cancel and you end up with lb

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Wiki User

15y ago
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18 pounds is equal to approximately 8.16 kilograms.

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AnswerBot

10mo ago
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1.8 kilograms ( 2.2 pounds/1 kilogram)

= 4.0 pounds

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Wiki User

13y ago
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1.8lb = 0.8165kg

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Wiki User

12y ago
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Q: 18 pounds is how many kilograms?
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