CC to HP Calculator
This cc to hp calculator serves as a vital tool that transforms engine displacement measured in cubic centimeters (CC) into horsepower (HP).
420 CC is approximately 28 HP, 357 CC is equal to 24 HP, 342 CC = 23 HP.
Converting CC to HP Formula
The equation for converting hp from CC involves multiple performance variables. The standard conversion formula is:
Horsepower = (CC × RPM × MEP × K) ÷ 792,000Where:
- MEP represents Mean Effective Pressure (typically ranging from 75-200 PSI)
- K signifies the power stroke coefficient (0.5 for 4-stroke engines)
- RPM indicates engine rotation speed
- 792,000 is the conversion constant
Calculating a 1000cc powerplant running at 6000 RPM with 150 PSI MEP is equals to approximately 57 horsepower.
A 600cc motorcycle engine operating at 12,000 RPM with 180 PSI MEP generates roughly 95 horsepower, demonstrating high-performance characteristics through optimal tuning.
A 1500cc vehicle engine running at 6500 RPM with 160 PSI MEP produces approximately 82 horsepower, reflecting typical daily-driving requirements.
CC to HP Conversion Table
| Engine Size (CC) | Approx. Horsepower (HP) |
|---|---|
| 6.5 cc | 0.4 |
| 10 cc | 0.6-0.7 |
| 50 cc | 3-4 |
| 100 cc | 6-7 |
| 125 cc | 8-9 |
| 135 cc | 9-10 |
| 150 cc | 10-11 |
| 163 cc | 10-11 |
| 179 cc | 11-12 |
| 200 cc | 12-14 |
| 208 cc | 12-14 |
| 212 cc | 12-14 |
| 250 cc | 15-17 |
| 277 cc | 16-18 |
| 280 cc | 16-18 |
| 306 cc | 18-20 |
| 342 cc | 20-23 |
| 350 cc | 21-23 |
| 357 cc | 21-24 |
| 420 cc | 24-28 |
| 439 cc | 25-29 |
| 493 cc | 28-33 |
| 500 cc | 30-34 |
| 587 cc | 35-39 |
| 750 cc | 45-50 |
| 800 cc | 48-53 |
| 1000 cc (1.0L) | 60-70 |
| 1200 cc | 70-80 |
| 1300 cc | 75-90 |
| 1500 cc (1.5L) | 90-100 |
| 2000 cc (2.0L) | 100-130 |
| 2500 cc (2.5L) | 120-150 |
| 2900 cc (2.9L) | 140-160 |
| 3000 cc (3.0L) | 140-180 |
| 3500 cc (3.5L) | 160-210 |
| 4000 cc (4.0L) | 180-240 |
| 5000 cc (5.0L) | 250-300 |
Converting CC to Horsepower: Step-by-Step Process
- Measure engine displacement
- Determine operational RPM range
- Calculate MEP specifications
- Apply the conversion formula: Horsepower = (CC × RPM × MEP × K) ÷ 792,000
- Account for efficiency losses
Analyzing a 2000cc powerplant operating at 5500 RPM with 140 PSI MEP would be:
(2000 × 5500 × 140 × 0.5) ÷ 792,000 = approximately 97 horsepowerWhat does 420 CC equal in horsepower
A 420cc engine generates between 25-35 horsepower, depending on performance factors.
Considering standard efficiency and operating at 7000 RPM with 145 PSI MEP:
(420 × 7000 × 145 × 0.5) ÷ 792,000 = approximately 27 horsepowerHow many HP is 300 CC
A 300cc powerplant usually produces 18-25 horsepower under normal conditions.
Using our formula with 6800 RPM and 140 PSI MEP:
(300 × 6800 × 140 × 0.5) ÷ 792,000 = approximately 18.1 horsepowerWhat is CC and Horsepower?
Cubic centimeters (CC) measures engine displacement volume, representing the total swept volume by all pistons during operation.
Horsepower (HP) quantifies the engine’s output rate, measuring work performed over time.