# Boost Horsepower (HP) Calculator

How much horsepower gain you can get from a certain amount of boost? Enter boos psi into the calculator to determine the horsepower increase from a given boost level.

### How to Use the Calculator

This calculator has two modes: Basic and Advanced. Let’s walk through how to use each mode with some example values.

#### Basic Calculator

**Enter Boost (PSI)**: Input the boost pressure in PSI. For example, enter`20`

PSI.**Horsepower Gain**: If you already know the boost, leave this blank to calculate the horsepower gain. Otherwise, enter the horsepower gain to find the required boost.

#### Advanced Calculator

**Enter Boost (PSI)**: Input the boost pressure in PSI. For example, enter`15`

PSI.**Efficiency Factor (%)**: Enter the efficiency of the engine. For instance, enter`80%`

.**Base Horsepower (HP)**: Enter the base horsepower of the engine. For example, enter`300`

HP.**Total Horsepower Gain**: This field will show the total horsepower gain after you click calculate.

### Formula

For the basic calculator, the formula to calculate horsepower gain is:

$\text{HP}=B\times 0.07$

**Variables**

Variable | Description |
---|---|

HP | Horsepower Gain (HP) |

B | Boost (PSI) |

## How To Calculate Boost HP

### Example 1: Basic Calculator

**Boost (PSI)**: 25 PSI**Horsepower Gain**: Leave blank

To calculate the **Horsepower Gain**:

Use the formula:

$HP=25\times 0.07=1.75\text{\hspace{0.17em}}\text{HP}$

So, the horsepower gain is **1.75 HP**.

#### Example 2: Advanced Calculator

**Boost (PSI)**: 10 PSI**Efficiency Factor (%)**: 85%**Base Horsepower (HP)**: 250 HP

To calculate the **Total Horsepower Gain**:

1. Convert the efficiency factor to a decimal:

$\text{Efficiency}=85\mathrm{\%}=0.85$

2. Calculate the total horsepower:

$\text{Total HP}=250\times (1+(10\times 0.85\mathrm{/}100))$

$\text{TotalHP}=250\times (1+0.085)$

$\text{TotalHP}=250\times 1.085=271.25\text{\hspace{0.17em}}\text{}$

2. Calculate the horsepower gain:

$\text{Horsepower Gain}=271.25-250=21.25\text{\hspace{0.17em}}\text{HP}$

So, the total horsepower gain is **21.25 HP**.

Thank You for using our tool.