### 3 Answers

- RandalLv 78 years agoFavorite Answer
Volume of a sphere = 4/3 * Pi * Radius^3

Radius = 1/2 * Diameter

Volume of air in this ball = 4/3 * Pi * 6 feet^3

1 Foot = 0.3048 Meters.

6ft = 1.8288m

Volume of air in ball = 4/3 * Pi * 1.8288 m³

Volume of air in ball = 25.620456m³

Cubic Meter = 1000 Liters.

25.620456m³ = 25620L

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Thus; an inflatable ball 12 feet in diameter, contains 25,620 liters of air! <== Answer!

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I hope this is helpful.

Source(s): http://www.mathexpression.com/volume-of-a-sphere.h... http://www.metric-conversions.org/length/feet-to-m... http://www.metric-conversions.org/volume/cubic-met... - Anonymous8 years ago
To convert liters to cubic feet

Divide the number of liters by 28.31685 to convert to cubic feet. For example, if you have 20 liters, divide 20 by 28.31685 to get 0.71 cubic feet.

http://www.ehow.com/how_8116769_convert-liter-cubi...

Therefore, to convert cubic feet to liters you multiply by 28.31685

The volume of a sphere is 4 x PI x R^3

Volume of your sphere (ball) is - 4 x 22/7 x 12^3 cubic feet

To establish the capacity in liters –

4 x 22/7 x 12^3 x 28.31685.

- polluxLv 58 years ago
Volume in cft = 4/3 x pi x Radius³

V = 1.3333333 x 3.14 x 6 x 6 x 6 = 904.32 cft

volume in liters:

1 cft = 28.31685 liters

So 904.32 cft = 904.32 x 28.31685 = 25607.49379 liters