How much does compressed air cost per m³?

Typical cost ranges from €0.01 to €0.04 per m³ depending on compressor efficiency, electricity price, and system losses. This makes compressed air one of the most expensive energy carriers in a factory.

What percentage of compressed air cost is electricity?

Electricity accounts for approximately 70–80% of the total lifecycle cost of compressed air. The remaining 20–30% covers equipment purchase, maintenance, and installation.

How can I reduce compressed air costs?

Key strategies: fix leaks (can save 15–30%), lower system pressure (each 1 bar reduction saves ~7% energy), use VSD compressors, recover waste heat, optimize air treatment, and eliminate inappropriate uses.

What is the specific energy of a compressor?

Specific energy (SE) is the power required per unit of air output, typically measured in kW/(m³/min) or kW/(L/s). A good rotary screw compressor at 7 bar achieves SE of 5.5–7.0 kW/(m³/min). Lower is better.

Is compressed air more expensive than electricity?

Yes, significantly. Compressing air is only 10–20% efficient. The energy in 1 m³ of compressed air costs roughly 7–10× more than the equivalent electrical energy. This is why minimizing air use is important.

Free Engineering Tool — #147

Compressed Air Cost Calculator

Calculate the true cost per cubic meter of compressed air from compressor power, output flow rate, and electricity price.

Cost = kW × Price / Output€/m³Annual Projection

Results

Cost per m³ of Compressed Air

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Specific Energy

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Annual Electricity Cost

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Annual Air Production

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Cost per m³

Specific Energy

P — compressor shaft power (kW)
Q — free air delivery (m³/min)
E_price — electricity price (€/kWh)

Example — 37 kW Screw Compressor

Given: Power = 37 kW, FAD = 5.5 m³/min, €0.15/kWh

SE = 37 / 5.5 = 6.73 kW per m³/min

Cost/m³ = 37 × 0.15 / (5.5 × 60) = €0.0168/m³

Annual cost (6000 h) = 37 × 0.15 × 6000 = €33,300

⚠️ Note: This calculates electricity cost only. Total cost of ownership includes maintenance (~10%), capital (~15%), and installation. Actual load factor may be lower than rated power.

Compressed Air Cost Calculator | Cost per m³ | Free Online Tool

Published by Nikolai Shelkovenko on February 15, 2026 February 15, 2026

Results

Cost per m³

Specific Energy