iPhone Screenshots


Energy, power… for any energy source, Energy Toolbox is the calculator you need.

How much tons of crude oil will be spilled in a month at a 1000 gallons per hour flow? What is the oil equivalent of a billion cubic-feet of natural gas? Energy Toolbox allow conversions from/to many energy and fuel units: gases, liquids, nuclear fuel...

The app also compares power production for different plants, according to their installed capacity and capacity factor (in % of the year): you'll discover that a gigawatt of solar electricity is very different than a gigawatt of nuclear.

All energy content (in low and high heat value) are sourced, with instant access on the reference document on the internet. You can also use your own sources!

What’s New

Version 2.0

• Help bubbles enrichment
• Some cosmetics bug correction
• Interface improvements

App Privacy

The developer, Leonardo Labs, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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