Pneumatic Air Compressor CFM Sizing & Tank Continuous Runtime Calculator
Calculate required air compressor delivery (CFM @ 90 PSI / Liters per Minute) and pressure tank reserve volume for pneumatic tools such as impact wrenches, paint sprayers, and grinders.
Calculator Inputs
Live Real-TimeRequired Compressor Output (CFM @ 90 PSI)
Air Flow in Liters Per Minute (L/min)
317 L/min
Recommended Air Tank Capacity (Liters)
222 L
Detailed Calculation Breakdown
Calculation Methodology
Required Compressor CFM = Tool Rated CFM * 1.30 Duty Buffer. Continuous Tank Buffer Runtime (Min) = (Tank Gallons * (Cut-out PSI - Cut-in PSI)) / (Tool CFM * 109.9).
Important Legal & Educational Disclaimer
Continuous-duty air tools (sanders, die grinders, spray guns) require an air compressor rated at least 1.3x to 1.5x of the tool's rated CFM demand.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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