Drag / Power calculator

24th September 2013

Tool for calculating a) drag (A.Cd) if power and speed are known and b) calculating power if drag and speed are known. The fluid density of air is assumed at 1.2 kg/m^3. Fill in the fields.

This tool uses the formula F = 1/2.p.v^3.A.Cd

mph

A.Cd

watts

By Lazy Cackle

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