Free Power Converter that works offline
Compare engine, electrical and heating power ratings without confusing power with total energy consumption.
What this power converter does
Power describes energy per unit time. All values are normalized to watts before conversion, while mechanical and metric horsepower remain distinct labeled units.
How to use the Power Converter
- Enter or paste a numeric power value and source and target units into the tool.
- Adjust the available options so they match the format and result you need.
- Choose Convert power and review the equivalent rate of energy transfer before using it.
- Copy or download the result, then clear the page if the input was sensitive.
Common uses
- Comparing motor ratings
- Converting appliance power
- Reading HVAC specifications
- Checking kilowatts and horsepower
Private processing and offline access
This tool does not submit your input to a conversion server. Processing takes place inside the browser using local JavaScript and standard Web APIs. After the PWA has been installed or cached, the page and its core features remain available without an internet connection. Closing or clearing the page removes unsaved input; the tool does not create an account or cloud history.
Tips for accurate results
- Horsepower definitions vary; select the labeled type.
- Kilowatt-hours measure energy, not power.
- Real equipment output may differ from nameplate ratings.
Frequently asked questions
Does this tool upload my data?
No. Power Converter processes its input in the current browser and does not submit it to a conversion API.
What input does the Power Converter accept?
Finite values are supported using standard mechanical and metric horsepower definitions.
Can I use this tool offline?
Yes. Once the Offline Tools PWA has cached the page, the core feature works without an internet connection.