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Calcimator

Air Compressor Sizing Calculator

Size an air compressor by calculating required CFM, HP, and tank capacity from tool demands, duty cycle, and diversity factor.

Inputs

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%
%

Results

Required CFM (adjusted)

10.08

Effective tool CFM12
Calculated HP38.95
Recommended motor HP40
Recommended tank (gal)20
Daily energy (kWh)143.23
Monthly electricity cost$378.13
Recommended pipe ID (in)0.5
How to Use This Calculator
  1. Enter Total tool CFM demand, Duty cycle, and Number of tools.
  2. Set Operating pressure (PSI), Diversity / simultaneity factor, and Safety margin.
  3. Adjust Electricity rate ($/kWh), Operating hours/day as needed.
  4. Review the Required CFM (adjusted) result.
  5. Use Effective tool CFM and Calculated HP to inform your decision.
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