Power Converter

Convert between watts, horsepower, kilowatts and more power units instantly. Perfect for engineering calculations, automotive applications, and electrical work.

  • Watts ↔ Horsepower
  • Kilowatts & Megawatts
  • BTU per Hour
  • Copy and Share Ready

Power Converter Form

Enter a numeric value, select the starting unit, choose the target unit, then view the live conversion with supporting callouts.

Result

Ready for conversion.
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Enter a power value to see the conversion.

What is a power converter and how does it work

A power converter transforms power measurements between different units. You use power converters when working with electrical systems, automotive engines, industrial equipment, and recreational vehicles. This power converter handles watts, horsepower, kilowatts, and twelve other power units.

Understanding power measurement

Power measures how fast energy transfers or work completes. Power differs from energy. Energy shows total work done. Power shows work rate over time. Your power converter calculates these relationships instantly.

The watt serves as the standard power unit worldwide. One watt equals one joule per second. James Watt, the Scottish engineer, gives this unit its name. Electrical appliances, motors, and power systems use watts as the base measurement.

Power unit scale comparison
Watt (W) → Kilowatt (kW)
÷ 1,000
Kilowatt (kW) → Megawatt (MW)
÷ 1,000
Watt (W) → Horsepower (Mechanical)
÷ 745.7
Horsepower → Kilowatt
× 0.7457

Using a power converter for electrical systems

Electrical systems measure power in watts and kilowatts. Light bulbs use 10 to 100 watts. Refrigerators consume 100 to 400 watts. Air conditioners require 1 to 5 kilowatts. Industrial motors range from 1 to 1,000 kilowatts. Power plants generate 1 to 1,000 megawatts.

Kilowatts represent 1,000 watts. Household appliances, electric motors, and small power systems use kilowatts for ratings. A typical home consumes 1 to 5 kilowatts during peak usage. Your power converter switches between watts and kilowatts instantly.

Megawatts equal 1,000,000 watts. Power plants, industrial facilities, and large-scale generation systems use megawatts. A single wind turbine produces 2 to 5 megawatts. Your power converter handles these large values accurately.

Gigawatts represent 1,000,000,000 watts. National power grids and massive generation facilities use gigawatts. Large nuclear power plants produce around 1 gigawatt. The power converter displays gigawatt conversions clearly.

Watts to Horsepower
watts ÷ 745.7 = horsepower
Example: 1,000 W ÷ 745.7 = 1.34 HP
Horsepower to Kilowatts
horsepower × 0.7457 = kilowatts
Example: 100 HP × 0.7457 = 74.57 kW

Power converter for automotive applications

Automotive applications use horsepower for engine ratings. Passenger vehicles produce 50 to 500 horsepower. Electric vehicles use 50 to 500 kilowatt motors. Formula 1 cars exceed 1,000 horsepower. Commercial trucks use 200 to 600 horsepower.

Mechanical horsepower equals 745.7 watts. Automotive engines in the United States use this unit. The term originated from comparing steam engine output to horse work capacity. Your power converter handles mechanical horsepower conversions.

Metric horsepower equals 735.5 watts. European automotive and mechanical applications use this unit. Many countries prefer metric horsepower for engine ratings. The power converter supports both mechanical and metric horsepower.

Electrical horsepower equals 746 watts. Electric motors and generators use this unit specifically. It provides a direct conversion for electrical power systems. Your power converter includes electrical horsepower for electric vehicle calculations.

RV power converter and camper power converter

Recreational vehicle power converters transform shore power to usable DC voltage. RV power converters typically handle 30 to 50 amps. A 30-amp RV power converter provides 3,600 watts. A 50-amp RV power converter provides 12,000 watts.

Camper power converters work similarly to RV power converters. Smaller campers use 15 to 20 amp power converters. These provide 1,800 to 2,400 watts. Your power converter helps verify RV power converter specifications.

When selecting an RV power converter, check wattage ratings. Convert between watts and amps using your power converter. Most RV power converters list output in watts. Use this power converter to compare different RV power converter models.

Recreational vehicle power converter efficiency matters. Higher efficiency means less heat generation. Your power converter helps calculate power requirements for RV appliances. Convert between watts and horsepower to understand generator needs.

Single to three phase power converter

Single to three phase power converters transform single-phase AC power to three-phase AC power. These power converters use electronic circuits to create balanced three-phase output. Industrial equipment requires three-phase power for efficient operation.

Single to three phase power converters handle various power levels. Small units handle 1 to 5 kilowatts. Medium units handle 5 to 50 kilowatts. Large units handle 50 to 500 kilowatts. Use this power converter to verify single to three phase power converter ratings.

When selecting a single to three phase power converter, check input and output power ratings. The power converter must handle your equipment's power requirements. Convert between watts and kilowatts to match specifications. Your power converter simplifies these calculations.

Power to weight ratio converter

Power to weight ratio measures performance efficiency. Higher power to weight ratios indicate better performance. Automotive engineers use power to weight ratios for vehicle design. Aircraft designers rely on power to weight ratios for flight calculations.

Calculate power to weight ratio by dividing power by weight. Use horsepower per pound or watts per kilogram. Your power converter handles the power portion of these calculations. Convert between different power units to compare ratios.

Sports cars have high power to weight ratios. A 300 horsepower car weighing 3,000 pounds has 0.1 horsepower per pound. Electric vehicles achieve excellent power to weight ratios. Use this power converter to calculate power to weight ratios accurately.

Thermal and energy rate units

BTU per hour equals 0.293 watts. Heating, ventilation, and air conditioning systems in the United States use this unit. Furnaces and boilers rate capacity in BTU per hour. Your power converter converts BTU per hour to watts and kilowatts.

Calorie per second equals 4.184 watts. Some scientific and engineering applications use this unit. Heat transfer calculations employ calories per second. The power converter includes calorie per second conversions.

Ton of refrigeration equals 3,517 watts. HVAC and refrigeration systems use this unit for cooling capacity. One ton represents the cooling power needed to freeze one ton of water in 24 hours. Your power converter handles ton of refrigeration conversions.

Mechanical work rate units

Foot-pound per second equals 1.356 watts. Mechanical engineering uses this unit in the imperial system. It measures work rate for rotating machinery and engines. Your power converter converts foot-pound per second to watts.

Erg per second equals 0.0000001 watts. Physics uses this unit for very small power measurements in the CGS system. Laboratory experiments require erg per second precision. The power converter handles these tiny values accurately.

Industrial power converter applications

Industrial equipment requires various power levels. CNC machines use 5 to 50 kilowatts. Industrial robots consume 1 to 10 kilowatts. Manufacturing furnaces require 100 kilowatts to 10 megawatts. Boilers use 50 kilowatts to 5 megawatts.

Industrial power converters transform power between different voltage levels. These power converters handle high power ratings. Use this power converter to verify industrial power converter specifications. Convert between watts, kilowatts, and megawatts for industrial applications.

Motor control systems use power converters for variable speed operation. These power converters adjust power output based on load requirements. Your power converter helps calculate power requirements for motor control systems.

Power versus energy

Power measures the rate of energy transfer. Energy measures the total work completed. Power multiplied by time equals energy. A 100-watt light bulb uses 100 watts of power. Over 24 hours, it consumes 2.4 kilowatt-hours of energy.

Understanding power versus energy helps with energy management. Your power converter focuses on power measurements. For energy calculations, use an energy converter alongside this power converter.

How to use this power converter

Enter your power value in the input field. Select the starting unit from the dropdown menu. Choose the target unit from the second dropdown. The power converter displays results instantly.

The power converter shows conversions in all supported units simultaneously. This breakdown helps verify calculations across different unit systems. Copy results for reports and documentation.

Power conversions use multiplication factors based on unit relationships. This power converter applies conversion factors automatically. The breakdown display shows all unit equivalents for verification.

Precision matters in power calculations. Rounding errors accumulate in complex systems. This power converter maintains high precision throughout conversions. Results display with appropriate decimal places for each unit type.

Power converter FAQs

What is a power converter?

A power converter transforms power measurements between different units. This power converter handles watts, horsepower, kilowatts, and twelve other power units. You use power converters for electrical systems, automotive applications, and industrial equipment.

How do I convert watts to horsepower quickly?

Divide the watt value by 745.7 for mechanical horsepower. This power converter applies this ratio instantly and returns a clean decimal for your notes. Enter your watt value and select horsepower as the target unit.

What is an RV power converter?

An RV power converter transforms shore power to usable DC voltage for recreational vehicles. RV power converters typically handle 30 to 50 amps, providing 3,600 to 12,000 watts. Use this power converter to verify RV power converter specifications and calculate power requirements.

How does a camper power converter work?

Camper power converters work similarly to RV power converters. Smaller campers use 15 to 20 amp power converters, providing 1,800 to 2,400 watts. This power converter helps verify camper power converter specifications and compare different models.

What is a single to three phase power converter?

A single to three phase power converter transforms single-phase AC power to three-phase AC power. These power converters handle 1 to 500 kilowatts depending on size. Use this power converter to verify single to three phase power converter ratings and match equipment specifications.

How do I calculate power to weight ratio?

Calculate power to weight ratio by dividing power by weight. Use horsepower per pound or watts per kilogram. This power converter handles the power portion of these calculations. Convert between different power units to compare power to weight ratios accurately.

Which power units appear in this power converter?

Watts, kilowatts, megawatts, gigawatts, mechanical horsepower, metric horsepower, electrical horsepower, BTU per hour, calorie per second, foot-pound per second, erg per second, and ton of refrigeration are available. This power converter supports all common power measurement units.

What is the difference between mechanical and metric horsepower?

Mechanical horsepower equals 745.7 watts and is used in the United States. Metric horsepower equals 735.5 watts and is used in Europe and other regions. This power converter supports both types for accurate conversions across different measurement systems.

How do I convert kilowatts to megawatts?

Divide the kilowatt value by 1,000. This power converter updates after you select kilowatts as the starting unit and megawatts as the target unit. The conversion happens instantly with precise results.

How do I copy results from the power converter?

Press Copy Result to move the equation and the full unit breakdown to your clipboard. Paste the output into documents, slide decks, or engineering notes. This power converter makes sharing results simple.

Why does the power converter show every unit at once?

The breakdown lists each supported power unit so your main result keeps context. This layout keeps cross-checking simple during quality reviews. The power converter displays all conversions simultaneously for verification.

What is a recreational vehicle power converter?

A recreational vehicle power converter transforms shore power to DC voltage for RV electrical systems. Recreational vehicle power converters handle 30 to 50 amps typically. Use this power converter to verify recreational vehicle power converter wattage ratings and calculate power needs.