Correction for the weight of a Basketball
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How heavy is 315 miligrams?
It's about one-two-thousandth as heavy as a Basketball
The weight of a Basketball is about 623,689.508750 miligrams.
(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 623,689.508750 miligrams. These balls have 4,118 pebbles each with a diameter of 2.5 mm