100% Verified Automotive Calculation Engine
Boost Horsepower Calculator
Use our accurate Boost Horsepower Calculator to instantly estimate how much HP your engine will make with a turbocharger or supercharger based on boost PSI
Table of Contents
Enter Calculation Parameters
Fields marked with a red asterisk (*) are required.
Verified Engine Formula
Calculation Output Summary
Boost Horsepower Calculator Results
Calculated Peak Output
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Calculating...
Volumetric Airflow (CFM)
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Primary Breakdown
Metric Output (kW)
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Secondary Metric
Mathematical Formula & Benchmark Chart
Standard Calculation Equation:
CFM Airflow = (Engine CID × Max RPM × Volumetric Efficiency %) / 3,456
Estimated HP = (Base Airflow CFM × Air-to-HP Coefficient) × (1 + Boost PSI / 14.7)
Estimated HP = (Base Airflow CFM × Air-to-HP Coefficient) × (1 + Boost PSI / 14.7)
Reference Matrix & Industry Standards Chart
| Engine RPM | Est. Airflow (CFM) | Est. Horsepower (NA) | Est. HP (10 PSI Boost) |
|---|---|---|---|
| 4,000 RPM | 345 CFM | 230 HP | 386 HP |
| 5,500 RPM | 475 CFM | 315 HP | 529 HP |
| 6,500 RPM | 560 CFM | 375 HP | 630 HP |
| 7,500 RPM | 648 CFM | 432 HP | 725 HP |
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