Brake Horsepower Calculator

Calculate the brake horsepower (BHP) of an engine based on torque and engine speed (RPM).

Input Parameters

Calculation Results

Calculation Formula

BHP = (Torque × RPM) / 5252

Where:
BHP = Brake Horsepower
Torque = Torque in Newton-meters (Nm)
RPM = Revolutions Per Minute (RPM)
5252 = Conversion factor (35.3146 × 2π)

Result

Brake Horsepower (BHP): 0.00

Brake Horsepower Calculator Usage Guide

Learn how to use the Brake Horsepower Calculator and understand its working principles

How to Use the Calculator

  1. Enter the engine's torque in Newton-meters (Nm) in the "Torque" field.
  2. Enter the engine's speed in revolutions per minute (RPM) in the "Engine Speed" field.
  3. Click the "Calculate" button to compute the brake horsepower (BHP).
  4. The result will be displayed in the "Result" section.
  5. Use the "Reset" button to clear all inputs and start over.

Understanding Brake Horsepower (BHP)

Brake Horsepower (BHP) is a measure of an engine's power output. It represents the power available at the engine's crankshaft, before any losses due to the transmission, drivetrain, or other accessories.

Formula Explanation

The calculator uses the following formula to calculate BHP:

BHP = (Torque × RPM) / 5252

This formula converts the rotational force (torque) at a specific engine speed (RPM) into horsepower. The number 5252 is a conversion factor that makes the units compatible for this calculation (it comes from converting radians per second to horsepower).

When to Use This Calculator

  • When you need to determine the power output of an engine.
  • For comparing the performance of different engines.
  • In automotive engineering and mechanics for performance analysis.