Energy and Power Converter: kWh, kcal, BTU, Joules, HP, Watts

Convert energy (J, kJ, cal, kcal, Wh, kWh, BTU, therm, eV) and power (W, kW, hp, PS, BTU/h, TR) units.

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How to use the energy & power converter

Type a number and pick the units.
Every other unit is shown at once; tap a value to copy it.
Use ⇅ Swap to convert the other way.

Questions

Is my data private?

Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.

Is it free?

Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.