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CC to HP Conversion Formula:
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CC to HP conversion estimates horsepower from engine displacement in cubic centimeters. This approximation is commonly used for small engines where HP = CC/15 provides a reasonable estimate of engine power output.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides an approximate conversion that works well for small engines, though actual horsepower can vary based on engine design, efficiency, and other factors.
Details: Understanding the relationship between engine displacement (CC) and horsepower (HP) is important for comparing engine performance, selecting appropriate equipment, and understanding power capabilities of small engines.
Tips: Enter engine displacement in cubic centimeters (cm³). The value must be greater than zero. This conversion is most accurate for small engines.
Q1: How accurate is the CC/15 conversion?
A: This is an approximation that works reasonably well for small engines. Actual horsepower can vary significantly based on engine design, compression ratio, and other factors.
Q2: Does this conversion work for all engine types?
A: This formula is primarily used for small engines (lawn mowers, generators, etc.). For automotive engines, more complex formulas are needed that account for additional factors.
Q3: Why divide by 15 specifically?
A: The divisor 15 is an empirical value that has been found to provide reasonable estimates for many small engine applications, though some sources may use slightly different divisors.
Q4: What affects the actual horsepower output?
A: Engine efficiency, compression ratio, fuel type, cooling system, and design all significantly impact the actual horsepower output beyond just displacement.
Q5: Should this be used for precise calculations?
A: This is an estimation tool. For precise horsepower measurements, dynamometer testing is required as many factors beyond displacement affect actual power output.