Enter the total boost in psi (pounds per square inch) or the horsepower (HP) into the calculator to convert between HP and Boost.


The following formula is used to convert boost from supercharger into generated horsepower.

Boost to HP Formula

HP = B * .07

To calculate hp from boos, multiply the boost by .07.

HP to Boost Formula

B = HP / .07
  • Where HP is the horsepower
  • B is the boost (PSI)

To calculate the boost from horsepower, divide the HP by .07.

Boost Definition

Boost is defined as the total pressure, most often measured in PSI, that a turbocharger or supercharger injects into the engine of a car. The injected air increases the horsepower of the engine for a small period of time.

Boost to Horsepower Example

How to calculate horsepower from boost?

  1. First, determine the total amount of boost.

    Measure the pressure in PSI delivered by the supercharger.

  2. Next, determine the generated horsepower.

    Calculate the estimated gained horsepower from the boost using the equation above.


What is boost?

Boost is the pressure delivered to an engine from a supercharger that temporarily increases the engine horsepower/output.