Hydraulic
Calculators
Leave the Maths to Us
Hydraulic systems can be complex, but calculating the right components doesn’t have to be. At Lister Fluid Power, we understand that your time is better spent on building and maintaining high-performing systems—not crunching numbers. That’s why we’ve developed a suite of free, easy-to-use hydraulic systems calculators designed to handle the maths for you.
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Whether you need to size tubes, calculate fluid velocity, or determine power requirements in kilowatts and horsepower, our fluid power calculators provides quick, accurate answers at the click of a button. Let us handle the calculations while you focus on optimising performance, reducing downtime, and driving efficiency in your hydraulic systems.
Explore our tools below and enhance your hydraulic performance today.
Why use our Fluid Power Calculators?
Lister Fluid Power's fluid power calculators are not just tools—they’re part of our commitment to supporting you in every stage of your hydraulic projects. Whether you’re an engineer, technician, or project manager, these tools provide real-time insights that empower you to design and operate your systems with confidence.
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Key Advantages:
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Free and Easy to Use: No sign-ups or hidden fees—just instant access to powerful tools.
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Accurate Results: Built on industry-standard formulas to ensure precision.
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Time-Saving: Make complex calculations in seconds, helping you focus on your project.
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Expert Support: Backed by Lister Fluid Power’s decades of hydraulic expertise.
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Interested in more free hydraulic information?
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Don't forget to visit our Blog and Technical Guides.
Bore Size Calculator
Find the Right Tube for Your Hydraulic Needs
Correct tube sizing is crucial to ensure optimal flow and minimize pressure drops in hydraulic systems. Our Tube Size Calculator helps you determine the appropriate tube bore size based on your flow rate and desired velocity. This ensures your system runs efficiently and safely.​
How to use:
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Enter the flow rate in L/min.
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Select the line type from the dropdown menu.
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Enter the velocity (within the suggested range for the selected line type).
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Click Calculate Tube Bore to get the result.
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Benefits:
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Prevent under sizing or oversizing of tubes.
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Reduce energy loss and improve system performance.
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Increase the lifespan of your hydraulic components.
Velocity Calculator
Ensure Optimal Fluid Velocity for Your System
Maintaining the right fluid velocity in hydraulic lines is essential to avoid turbulence, noise, and wear. Our Velocity Calculator allows you to calculate fluid velocity based on flow rate and tube diameter, ensuring you stay within the recommended ranges for different line types.
How to use:
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Enter the flow rate in L/min.
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Input the inside diameter (ID) of the tube in mm.
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Hit "Calculate Velocity" to get fluid velocity in metres per second (m/s).
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Benefits:
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Optimize hydraulic line performance.
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Prevent premature system failure due to incorrect velocities.
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Ensure compliance with industry standards.
Power (KW & HP) Calculator
Accurately Calculate Hydraulic Power Requirements
Understanding the power required for your hydraulic system is critical for selecting the right components and maintaining energy efficiency. Our KW & HP Calculator lets you convert hydraulic pressure and flow rate into kilowatts (KW) and horsepower (HP) with ease.
How to use:
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Enter the pressure in Bar. This is the force applied by the fluid in the system.
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Enter the flow rate in Litres per Minute (L/min). This is the amount of fluid moving through the system.
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Press the "Calculate Power" button to see the results.
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Benefits:
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Optimize motor and pump selection.
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Improve energy efficiency and reduce operating costs.
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Avoid underpowered or overpowered systems.
Finding our hydraulic calculators effective? Why not try our Pneumatic Calculators as well! Explore now and take your pneumatic system optimisation to the next level.
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hydraulic success
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