Is Power Converter free to use?

Yes, Power Converter is completely free. No subscription, no credit card, and no account required — ever.

Do I need to create an account to use Power Converter?

No account is needed. Power Converter works instantly in your browser — just open the page and start using it.

Is Power Converter safe? Does it store my data?

Power Converter processes your data locally in your browser. Nothing is sent to or stored on our servers.

How do I use Power Converter?

Open the tool, enter or paste your input, and your result appears instantly. Use the copy button to save it. The whole process takes under a minute.

Power Converter

Convert power between watts, horsepower, kilowatts, BTU/h, and other power units.

Convert Units

From:

To:

Result:

Convert power measurements between different units including watts, horsepower, kilowatts, BTU per hour, and more with our professional power converter.

What is Power Converter?

Power is the rate at which energy is transferred or converted. It measures how quickly work is done or energy is used.

Understanding the Units

Watt (W)

SI unit of power. One watt equals one joule per second.

Common Uses: Light bulbs, appliances, electronics

Kilowatt (kW)

Equal to 1,000 watts.

Common Uses: Electric motors, heating systems, solar panels

Conversion: 1 kW = 1,000 W

Horsepower (hp)

Traditional unit for engine power.

Common Uses: Car engines, motors

Conversion: 1 hp = 745.7 W

Common Conversions

LED bulb: 10 W
Microwave: 1,000 W = 1 kW
Car engine: 150 hp = 112 kW
Home solar system: 5 kW
Large wind turbine: 2–3 MW = 2,000–3,000 kW

Conversion Formulas

Watts to kilowatts: kW = W ÷ 1,000
Kilowatts to watts: W = kW × 1,000
Horsepower to watts: W = hp × 745.7
Watts to horsepower: hp = W ÷ 745.7
Power formula: P = V × I (Power = Voltage × Current)

Practical Examples

LED bulb: 10 W replaces a 60 W incandescent (same brightness)

Electric kettle: 2,000 W = 2 kW = 2.68 hp

Family car engine: 100 kW = 134 hp = 100,000 W

Home EV charger (Level 2): 7.2 kW = 7,200 W

When to Use Each Unit

Watts (W): Small appliances, electronics, lighting specifications

Kilowatts (kW): Large appliances, electric vehicles, solar panel output

Horsepower (hp): Vehicle engines, industrial motors, mechanical applications

Megawatts/Gigawatts: Power plants, grid-scale energy generation

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