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Calcimator

Gas Compression Calculator

Calculate compressor horsepower from pressure and flow requirements.

Inputs

psi
psi
Mcf/day
°F
%

Results

Required Horsepower

58,651 HP

Compression Ratio

20:1

Number of Stages3
Ratio per Stage2.71:1
Discharge Temperature212 °F
How to Use This Calculator
  1. Enter inlet pressure (psia), outlet pressure (psia), inlet temperature (°F), and gas flow rate (MMscfd).
  2. Enter gas specific gravity and polytropic efficiency (%).
  3. Read required horsepower (HP) and compression ratio.
  4. Review horsepower per MMscfd to compare with vendor sizing sheets.
  5. Check discharge temperature (°F) — excessive discharge temperatures require intercooling.
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