Mila's Energy Converter PRO

Part of the award-winning Mila's Tools family. Convert joules, calories, BTU, kWh, and more — type one value and see every energy unit instantly.

13 units. Every energy standard. One effortless converter.

Mila's Energy Converter — part of the award-winning Mila's Tools family of converters — makes it easy to convert between every major energy unit. Whether you're working with food calories, electric bills, physics homework, or engineering specs, type one value and instantly see the result in every format.

13 SUPPORTED UNITS

Metric/SI • joules (J) • kilojoules (kJ) • megajoules (MJ) • gigajoules (GJ)

Thermal/Heat • calories (cal) • British thermal units (BTU) • kilocalories (kcal) • therms

Electrical • watt-hours (Wh) • kilowatt-hours (kWh)

Mechanical • foot-pounds (ft·lb)

Scientific • electronvolts (eV) • ergs

WHY IT MATTERS Energy is measured differently across industries: nutritionists use calories, electricians use kilowatt-hours, physicists use joules, and gas companies use therms. Converting between them requires knowing the right factors — this app handles the math so you can focus on the numbers that matter.

FAVORITES Star the units you use most. Drag and drop to reorder. Your favorites appear right at the top, every time.

BUILT FOR PRECISION Choose automatic smart formatting or set manual decimal precision from 0 to 10 places. Locale-aware number formatting respects your region's separators and conventions.

DESIGNED FOR YOU • Dark mode with rich color themes • Comfortable or compact view styles • Show or hide any unit you don't need • Quick-copy any value with a swipe • Custom numeric keyboard (iOS) • Available on iPhone, iPad, and Mac

Whether you're a student, engineer, nutritionist, or just trying to understand your energy bill — this is the energy converter for you.

If you have any questions, please don't hesitate to reach out at scott@scottdesapio.com.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/