Energy Converter
Energy Converter is a free online Unit Converters tool that convert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
How to use: Energy Converter →
Description
Convert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent.
- Because everything is computed client-side, Energy Converter is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using Energy Converter takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Examples
These ready-made examples show typical inputs and the exact output Energy Converter produces for them.
1
One kilowatt-hour in joules, BTU, calories and megajoules.
Use cases
Common situations where Energy Converter helps:
- Convert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent.
- Because everything is computed client-side, Energy Converter is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is Energy Converter?
Energy Converter convert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent. It runs entirely in your browser, so your data stays private.
Is Energy Converter free to use?
Yes. Energy Converter is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.