The values usually found in books are the ratio of surface gravity on a planet to that of the earth. This makes it easy to compute your weight. For example, if the surface gravity of planet X is 2.0 times that of the earth and you weigh 110 pounds on earth, then you would weigh 2*110 or 220 pounds on planet X.
After you find the relative surface gravity data, type it into a table in a spreadsheet. Don't forget to label your data. Design the spreadsheet so that you can enter your weight or that of a friend into one cell and let the spreadsheet compute how much you or your friend would weigh on the other planets.
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