ClueLuma

Compressed-air specific power (SP) calculator

Compare power per delivered free-air flow at the same pressure and treatment boundary.

Units
SP=PQ\mathrm{SP} = \frac{P}{Q}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

kW
cfm
kW/cfm

Worked example

Given

  • PP = 85 kW
  • QQ = 420 cfm
SP=85420≈0.2024\mathrm{SP} = \frac{85}{420} \approx 0.2024

Symbols and units

SymbolMeaningUnit
SP\mathrm{SP}power per free-air outputkW/cfm
PPsystem electrical powerkW
QQfree-air delivered flowcfm

Related calculators

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.