Of course, it's just as easy to convert pounds to kilograms. The conversion
factor to do this is .45. That is, you multiply the weight in pounds by
.45 to find the equivalent weight in kilograms.
POUNDS * CONVERSION FACTOR = KILOGRAMS
4 * .45 = 1.8
10 * .45 = 4.5
12 * .45 = 5.4
2 * .45 = .9