Enter the total horsepower, distance, and time into the calculator to determine the equivalent force.

Horsepower to Force Formula

The following equation is used to calculate the force from horsepower.

F= HP*T * 550 / D
  • Where F is the force (lbf)
  • HP is the horsepower (ft-lbf/s)
  • T is the time (s)
  • D is the distance (ft)

To calculate force from horsepower, multiply the horsepower by the time, divide by the distance, then multiply by 500.

Can Force Be Calculated From Horsepower?

A horsepower is a unit of power that is length times force divided by time. Therefore, the force can be calculated from horsepower if both time and distance/length are known.

How to Calculate Force from Horsepower?

Example Problem:

The following example outlines the steps and information needed to calculate force from horsepower.

First, determine the total horsepower. In this example, the total horsepower is 400.

Next, determine the time. The time in this example is 10 seconds.

Next, determine the distance. The distance for this problem is 20 feet.

Finally, calculate the force from horsepower using the formula above:

F= HP*T / 550 / D

F= 400*10 * 550 / 20

F= 110,000 lbf


What is horsepower and how is it measured?
Horsepower is a unit of power that represents the rate at which work is done. It is traditionally measured as the amount of work required to lift 550 pounds one foot in one second, or one horsepower (HP). This measurement can also be represented in terms of foot-pounds per second (ft-lbf/s).

Why is it important to convert horsepower to force?
Converting horsepower to force is important in various engineering and mechanical applications to understand the actual force exerted by a machine or engine. This conversion helps in designing, optimizing, and comparing mechanical systems by providing a clear measure of the force output relative to the power input.

Can the formula for calculating force from horsepower be used for any type of engine or machine?
Yes, the formula for calculating force from horsepower can be applied to any type of engine or machine, as long as the required inputs (horsepower, time, and distance) are accurately measured or estimated. However, it’s important to consider the efficiency and operational context of the machine, as these factors can influence the actual force output.