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Mass and weight are actually different—mass is the amount of substance in an object, while weight is the force gravity exerts upon its mass. But here on the earth’s surface, where gravity is a constant, the two are generally treated as interchangeable.

Quantity to convert (q):

Start with: Grams Milligrams Kilograms Metric tons U.S. tons Pounds Ounces Grains

Convert to: Grams Milligrams Kilograms Metric tons U.S. tons Pounds Ounces Grains

Pounds (z): Ounces: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Fraction: even 1/4 1/2 3/4

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