Boost Horsepower Calculator
Thinking about forced induction? Calculate how much horsepower you can gain by adding a supercharger or turbocharger.
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Boosted Horsepower
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HP Gained
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% Increase
Theoretical Boost Power
This calculator estimates power gains based on atmospheric pressure ratios. The logic assumes that doubling the air pressure (adding 14.7 PSI of boost) theoretically doubles the horsepower, although real-world results vary due to heat, efficiency, and mechanical limits.
New HP = Base HP × ((14.7 + Boost) / 14.7)
Ensure your engine internals can handle the extra pressure before boosting!