Compressed Air System Calculator
The Compressed Air System Calculator sizes the compressor (kW/HP) and air receiver for a plant's demand, pressure, and duty cycle. Example: for a 10 m³/min plant demand at 7 barg and 60% duty, Recommended compressor = 132 kW, Recommended = 177 HP, Air receiver = 20.27 m³ (per ISO 1217 | ISO 8573-1 | ASME B31.3 | CAGI).
How it works
Computed from your inputs per ISO 1217 | ISO 8573-1 | ASME B31.3 | CAGI.
Worked example (HVAC & Cooling)
Inputs: a 10 m³/min plant demand at 7 barg and 60% duty.
| Result | Value |
|---|---|
| Recommended compressor | 132 kW |
| Recommended | 177 HP |
| Air receiver | 20.27 m³ |
Computed live by WorkHive's calculation engine; standard: ISO 1217 | ISO 8573-1 | ASME B31.3 | CAGI.
How to use this calculator
- Enter the figures for the duty you are sizing: the worked example below uses a 10 m³/min plant demand at 7 barg and 60% duty.
- The calculator returns Recommended compressor, Recommended, Air receiver, computed per ISO 1217 | PSME Code | ASME B31.3 | CAGI.
- Check the worked example to confirm the method matches how you would do it by hand, then run your own numbers in the interactive tool.
FAQ
What is a compressor sizing calculator CFM kW?
The Compressed Air System Calculator is a free online tool that computes sizes the compressor (kW/HP) and air receiver for a plant's demand, pressure, and duty cycle. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following ISO 1217 | PSME Code | ASME B31.3 | CAGI. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive's engineering calculators are free to use, no sign-up needed for the tools. WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive Compressed Air System Calculator in WorkHive: free, no sign-up needed for the calculators.