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How do you calculate the cbm of a drum which has 16 inches diameter and 20 inches height?
Wiki User
∙ 14y ago
By "cbm" I'm assuming you mean, "cubic meters".
First, you have to convert inches to meters. One inch = 0.0254 meters.
So:
16 inches = 16 * 0.0254 meters
16 inches = 0.4064 meters
20 inches = 20 * 0.0254 meters
20 inches = 0.508 meters
Now you use those numbers to calculate the volume of the drum in cubic meters:
Volume = (pi * Radius^2) * Length (Note: ^ means to the power of)
Length is 0.508 meters. Radius is 1/2 diameter, or 0.4064/2 = 0.2032.
Volume = (pi * 0.2032^2) * 0.508
Volume = (3.14159 * 0.2032^2) * 0.508
Volume = (3.14159 * 0.04129) * 0.508
Volume = (0.129717) * 0.508
Volume = 0.065896
Answer: 0.065896 cubic meters or about 66/1000 of a cubic meter
Wiki User
∙ 14y ago
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