Power Converter

Free Power Converter — Convert Watts, Kilowatts, & More Instantly

Convert power between any units instantly with OmniConverter's free online power converter. Supports watts, kilowatts, and horsepower. Whether you're comparing engine ratings, calculating electricity consumption, or working on an engineering problem, our tool provides precise, real-time power conversions.

How It Works

Convert in three simple steps.

1

Enter the Power Value

2

Choose Source and Target Power Units

3

Read Your Converted Power Output

Popular Power Conversions

Common Benchmarks

Reference

1 WW

1 W

Reference

1 WkW

0.001 kW

Reference

1 Whp

0.0013410219 hp

Real-World Use Cases

Power conversion is used when comparing car and motorcycle engine outputs (HP vs kW), sizing solar panel and battery systems (watts and kilowatts), calculating household electricity consumption, comparing HVAC and heating system capacities (BTU/hr vs kW), evaluating industrial motor ratings, and understanding power outputs in physics and engineering contexts.

Frequently asked questions

Quick answers to common conversion questions

How do I convert watts to kilowatts?+

Divide watts by 1,000 to get kilowatts.

What is horsepower?+

Horsepower is a mechanical power unit commonly used for engines and motors.

How do I convert kilowatts to horsepower?+

Multiply kilowatts by 1.34102 to estimate horsepower.

What is the relation between watts and joules per second?+

One watt equals one joule per second.

Can I convert mechanical horsepower to electrical horsepower?+

The converter uses the standard conversion factor for a consistent numeric result.

Why does power matter in appliances?+

Power tells you how much energy an appliance uses per unit of time.

How do I convert watts to BTU per hour?+

Use the appropriate conversion factor if you need heating and cooling industry units.

Is power different from energy?+

Yes. Energy is the total amount used, while power is the rate at which energy is used.

How do I convert kW to W?+

Multiply kilowatts by 1,000.

What unit is used in solar panels?+

Watts and kilowatts are common for panel output.

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