Energy Converter - Joules, Calories, kWh, BTU and More

Convert energy between different units instantly. Essential for physics, engineering, nutrition, and applications involving energy transfer or storage.

What is energy?

Energy is the capacity to do work or produce heat, measured in joules (J) in the SI system. There are various forms of energy and multiple units depending on the application.

Available energy units

Convert between joules (J), kilojoules (kJ), megajoules (MJ), calories (cal), kilocalories (kcal), kilowatt-hours (kWh), BTU, electron-volts (eV), and other specialized units.

Joules in physics

The joule is the SI unit of energy. One joule is equivalent to the work done by a force of one newton over one meter. It is fundamental in scientific calculations.

Calories in nutrition

In nutrition, food energy is measured in kilocalories (kcal), popularly called "calories". One kcal is approximately equivalent to 4,184 kJ. Conversions help to understand nutritional values.

Kilowatt-hour (kWh)

kWh is used to measure electrical consumption. It is the energy consumed by a 1 kW appliance operating for one hour. Electricity bills are calculated in kWh.

BTU in air conditioning

BTU (British Thermal Unit) is used to specify the capacity of air conditioners and heaters. Conversions facilitate comparisons and the selection of suitable equipment for different environments.

Scientific applications

Scientists convert energy for thermodynamic analyses, chemical calculations, efficiency studies, particle physics research, and experiment documentation.

Conclusion

Convert energy between any unit with our precise tool. Indispensable for science, engineering, nutrition, and various technical applications.