# How to calculate meters per minute to revaluation per minute. Dia is 27inches rotating at 150 mpm?

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• Meter per minute is a liners unit ,you need to calculate rotary circumference and find the length of the rotary .now you have rpm in length per minute.

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• You are asking this question very clumsily.

How to calculate the rotational speed from the surface speed?

How to convert the surface speed to the rotational speed?

150 mpm ÷ 27 inches diameter =

150 mpm ÷ (27 × 3.1416) =

150 mpm ÷ 84.8232 inches circumference =

150 mpm ÷ (84.8232/39.37) =

150 mpm ÷ 2.155 meters = 69.62 rpm

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• translational speed V = 150 mpm = 150/60 = 2.5 mps

angular speed ω = V/r = (2.5/13.5*0.0254) = 7.291 rad/sec

n = ω*60/2PI = 9.549*7.291 = 69.622 rpm

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• pi*d*n=22*27*150/7=12728.57 in/min=50.11 m/mi

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• I don't think it will get more or less valuable at any speed, including zero mph.

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• Convert 27 inch into meter first , then calculate it with formula 3.14*d*150

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• circumference is 27π inches, which is one revolution

that is 2.155 m

150 m/min x 1 rev/2.155 m = 69.6 rev/min

• Yes. 👍

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