Enter the pressure and the flow rate into the Calculator. The calculator will evaluate the Hydraulic Horsepower. 

Hydraulic Horsepower Formula

HHP = P * Q  / 1714

Variables:

  • HHP is the Hydraulic Horsepower (())
  • P (psi) is the pressure
  • Q (GPM) is the flow rate

To calculate Hydraulic Horsepower, multiply the pressure by the flow rate, then divide by 1714.

How to Calculate Hydraulic Horsepower?

The following steps outline how to calculate the Hydraulic Horsepower.

  1. First, determine the pressure. 
  2. Next, determine the flow rate. 
  3. Next, gather the formula from above = HHP = P * Q / 1714.
  4. Finally, calculate the Hydraulic Horsepower.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

pressure = 71

flow rate = 32

FAQ

What is Hydraulic Horsepower?

Hydraulic Horsepower (HHP) is a measure of the power generated within a hydraulic system. It is calculated based on the pressure and flow rate of the fluid in the system.

Why is the number 1714 used in the formula for calculating Hydraulic Horsepower?

The number 1714 is used to convert the product of pressure (in pounds per square inch or psi) and flow rate (in gallons per minute or GPM) into horsepower. This conversion factor is derived from the basic units of measurement in the formula.

Can Hydraulic Horsepower be used to measure the efficiency of a hydraulic system?

While Hydraulic Horsepower itself is a measure of power, it can indirectly indicate the efficiency of a hydraulic system when compared with the input power to the system. However, for a direct measure of efficiency, hydraulic motor efficiency calculations are more appropriate.

How does the flow rate affect the Hydraulic Horsepower of a system?

The flow rate directly affects the Hydraulic Horsepower of a system. An increase in flow rate, while keeping pressure constant, will result in an increase in Hydraulic Horsepower, illustrating the direct relationship between these variables in the power generation of hydraulic systems.