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Power Converter

Convert between watts, kilowatts, horsepower, BTU/h and more.

Runs locally in your browser. Your data is never uploaded.

What is the Power Converter?

Convert between watts, kilowatts, horsepower, BTU/h and more. The Power Converter is a free online tool that works instantly in your browser — no installation, no signup and nothing to upload. It sits alongside other Unit Converters tools on DevNibble such as Unit Converter, CSS Unit Converter, Data Size Converter.

How to use the Power Converter

  1. Paste the source data into the input.
  2. The converted output appears instantly.
  3. Copy or download the result.

Features

  • Runs 100% in your browser — your data is never uploaded or stored.
  • Free forever, with no account, no ads and no tracking.
  • Copy or download your result in one click.
  • Fast and responsive on desktop, tablet and mobile.

Frequently asked questions

Is the Power Converter free to use?

Yes — Power Converter is completely free with no sign-up, no ads and no limit on how many times you can use it.

Is my data private when I use the Power Converter?

Everything happens locally in your browser. Your input is never sent to a server, which makes Power Converter safe to use with private or sensitive data.

How do I use the Power Converter?

Type a value and pick its unit; Power Converter instantly shows the equivalent in every other supported unit.

Which units does the Power Converter support?

Convert between watts, kilowatts, horsepower, BTU/h and more. All conversions use standard, internationally-recognised factors so the results are accurate in any direction.