In industries that rely on hydraulic systems, pumps, or fluid flow measurement, understanding flow rates is critical to achieving optimal performance. One essential conversion frequently required is from CC/REV (cubic centimeters per revolution) to GPM (gallons per minute). This is especially important in applications involving hydraulic motors, pumps, or any rotating equipment used in fluid systems.
To make this calculation simple and efficient, our CC/REV to GPM Calculator is designed to provide instant results using only two input values: the displacement in cubic centimeters per revolution and the rotational speed in revolutions per minute (RPM).
Whether you’re an engineer, technician, mechanic, or student, this tool ensures you can make quick and accurate fluid flow conversions without manual effort or complex spreadsheets.
What is a CC/REV to GPM Calculator?
The CC/REV to GPM Calculator is a practical conversion tool used to determine the volumetric flow rate of a pump or motor based on its displacement and rotational speed. The measurement CC/REV refers to how many cubic centimeters of fluid are moved with one complete revolution, while GPM indicates how many gallons of fluid are moved in one minute.
This conversion is crucial in designing or troubleshooting hydraulic systems and is commonly used in automotive, industrial, marine, and agricultural machinery.
Why Is This Conversion Important?
In hydraulic and mechanical systems, knowing how much fluid is being moved through a pump or motor per minute helps:
- Size components properly
- Maximize system efficiency
- Avoid overloading equipment
- Estimate power requirements
- Maintain system safety
By converting CC/REV to GPM, professionals can quickly understand if their equipment meets the desired performance standards.
CC/REV to GPM Formula Explained
The calculation to convert cubic centimeters per revolution (CC/REV) into gallons per minute (GPM) is based on the following formula:
GPM = (CC/REV ÷ 3785) × RPM
Where:
- CC/REV is the fluid displacement per revolution in cubic centimeters
- RPM is the number of revolutions per minute
- 3785 is the number of cubic centimeters in one U.S. gallon
Example Calculation
Let’s say a hydraulic pump has a displacement of 50 CC/REV, and it operates at 1800 RPM.
Using the formula: GPM = (50 ÷ 3785) × 1800
GPM = 0.01321 × 1800 = 23.78
So the output flow rate is approximately 23.78 GPM.
How to Use the CC/REV to GPM Calculator
This tool is designed to be user-friendly and requires just two values:
- Enter the CC/REV value – This is the amount of fluid (in cubic centimeters) moved per revolution.
- Enter the RPM value – This is the speed at which the equipment is rotating.
- Click the “Calculate” button – The tool will instantly calculate and display the GPM value.
The result is shown in gallons per minute (GPM), making it easy for engineers and operators to apply this data to real-world systems.
Practical Use Cases
This calculator is used in several industries:
- Hydraulic System Design: For determining pump or motor sizing
- Agricultural Equipment: Irrigation systems that rely on flow rate accuracy
- Automotive Engineering: Analyzing power steering pumps and transmission systems
- Marine Applications: Flow rates in fuel and cooling systems
- Manufacturing and Automation: Lubrication or cooling system planning
Advantages of Using an Online CC/REV to GPM Calculator
- Time-Saving: No need to memorize or manually perform complex unit conversions
- Accuracy: Reduces chances of errors in manual calculations
- Accessibility: Works on all devices with instant output
- Convenience: Just two inputs and one click give you the exact result
Tips for Accurate Results
- Always confirm your CC/REV rating from the equipment’s datasheet
- Use actual measured RPM for real-time flow rate estimation
- Ensure displacement is given in cubic centimeters and not milliliters or other units
- Understand if the system experiences slip or leakage, as this calculator assumes 100% efficiency
20 Frequently Asked Questions (FAQs)
1. What does CC/REV mean?
CC/REV stands for cubic centimeters per revolution, indicating how much fluid is displaced with each full revolution of a pump or motor.
2. What is GPM?
GPM stands for gallons per minute, a common unit for measuring fluid flow rate.
3. How accurate is this calculator?
It provides a theoretical maximum flow rate based on inputs and assumes no losses due to leakage or slippage.
4. Is 3785 always used in the formula?
Yes, because 1 U.S. gallon = 3785 cubic centimeters.
5. Can I use this calculator for both pumps and motors?
Yes, as long as you have the CC/REV and RPM values, the calculation applies.
6. What if I use liters instead of gallons?
You’ll need a different conversion: GPM = (CC/REV ÷ 1000) × RPM ÷ 3.785
7. Is this calculator valid for variable displacement pumps?
Yes, but you must use the actual displacement at a specific setting.
8. Can this help in sizing hydraulic hoses?
Yes, by knowing GPM, you can determine the appropriate hose diameter for your system.
9. What if my displacement is in in³/REV?
You must first convert it to CC/REV. 1 in³ = 16.387 cm³
10. Can this be used in HVAC systems?
Only if the system uses fluid flow driven by rotational pumps.
11. Is the result in U.S. gallons or imperial gallons?
U.S. gallons. For imperial gallons, use CC/REV ÷ 4546 instead of 3785.
12. Can this tool be used in real-time monitoring?
It’s for estimation only, not live sensor data.
13. What if the pump has efficiency losses?
The result will be higher than the actual output; real-world efficiency factors must be considered separately.
14. What is the typical range of CC/REV for hydraulic pumps?
It varies widely – from 0.1 to 250 CC/REV or more, depending on the application.
15. Can I calculate for electric motor-driven pumps?
Yes, just ensure you know the RPM of the pump shaft, not just the motor.
16. Do I need to input time?
No, GPM is already a time-based unit (gallons per minute).
17. What happens if I enter 0 in RPM?
You’ll get a GPM of 0, which makes sense since no rotation means no flow.
18. Can I save the result?
While this tool doesn’t store data, you can manually record or screenshot the output.
19. Is there a mobile-friendly version?
Yes, the tool works perfectly on smartphones and tablets.
20. Can I use this in educational settings?
Absolutely! It’s a great tool for teaching fluid dynamics and hydraulic principles.
Final Thoughts
The CC/REV to GPM Calculator is an essential tool for anyone working with fluid systems, from hydraulic engineers to mechanics and technical educators. With just two inputs—displacement and speed—it provides quick, reliable results that aid in design, maintenance, and troubleshooting.
By simplifying a critical engineering conversion, this calculator helps professionals make faster, more informed decisions. And since it’s online and easy to use, it fits seamlessly into both field work and classroom settings.