Power Conversion Table
Convert between different power units including Watts, Horsepower, BTU/h, and more. Get accurate power conversions for engineering and electrical applications.
| Unit | Symbol | Watts (W) | Kilowatts (kW) | Horsepower (HP) | BTU/h | cal/s |
|---|---|---|---|---|---|---|
| Watt | W | 1.000000e+0 | 1.000000e-3 | 1.341022e-3 | 3.412142e+0 | 2.390057e-1 |
| Kilowatt | kW | 1.000000e+3 | 1.000000e+0 | 1.341022e+0 | 3.412142e+3 | 2.390057e+2 |
| Megawatt | MW | 1.000000e+6 | 1.000000e+3 | 1.341022e+3 | 3.412142e+6 | 2.390057e+5 |
| Horsepower | hp | 7.457000e+2 | 7.457000e-1 | 1.000000e+0 | 2.544435e+3 | 1.782266e+2 |
| Metric Horsepower | PS | 7.355000e+2 | 7.355000e-1 | 9.863216e-1 | 2.509631e+3 | 1.757887e+2 |
| BTU per Hour | BTU/h | 2.930710e-1 | 2.930710e-4 | 3.930146e-4 | 1.000000e+0 | 7.004565e-2 |
| Calorie per Second | cal/s | 4.184000e+0 | 4.184000e-3 | 5.610835e-3 | 1.427640e+1 | 1.000000e+0 |
| Foot-pound per Second | ft⋅lbf/s | 1.355820e+0 | 1.355820e-3 | 1.818184e-3 | 4.626251e+0 | 3.240488e-1 |
Features
- ✓Comprehensive power unit coverage
- ✓Real-time conversion calculations
- ✓Scientific notation for precise values
- ✓Search and filter functionality
- ✓Mobile-responsive design
- ✓Copy-friendly formatted results
How to Use the Power Conversion Table
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Common Use Cases
Electrical Engineering
Convert power ratings for electrical equipment, motors, and power consumption calculations.
Automotive Industry
Convert engine power ratings between horsepower and kilowatts for vehicle specifications.
Industrial Applications
Convert power specifications for industrial machinery, generators, and manufacturing equipment.
Home & HVAC
Convert power ratings for home appliances, heating systems, and energy efficiency calculations.
Frequently Asked Questions
What is the difference between mechanical and electrical horsepower?
Mechanical horsepower (745.7 W) is used for engines and motors, while electrical horsepower (746 W) is used for electrical equipment. The difference is minimal but important for precise calculations.
How accurate are the power conversions?
Our conversions use precise conversion factors and display results in scientific notation for maximum accuracy. The calculations are suitable for engineering and technical applications.
What is the most commonly used power unit?
Watts (W) is the SI base unit for power and most commonly used in electrical applications. Horsepower is still widely used in automotive and mechanical applications.
Can I convert between different types of horsepower?
Yes, our table includes both mechanical horsepower (745.7 W) and metric horsepower (735.5 W) for comprehensive conversions.