Energy Conversion
1 J =
kJ
About Energy Conversions
Energy is the capacity to do work or produce heat. It exists in various forms such as kinetic, potential, thermal, electrical, chemical, nuclear, and electromagnetic energy.
The joule (J) is the SI unit of energy, defined as the energy transferred when applying a force of one newton through a distance of one meter. Other common units include calories (cal), kilowatt-hours (kWh), and British thermal units (BTU).
Energy conversion is essential in physics, engineering, nutrition, and many other fields. Different energy units are often used in different contexts:
joules and kilojoules in physics, calories and kilocalories in nutrition, kilowatt-hours for electricity consumption, and BTUs for heating and cooling systems.
Accurate energy conversion is crucial for scientific research, engineering design, and energy management.
Common Energy Conversions
- Joule to Kilojoule
- Joule to Calorie
- Kilojoule to Joule
- Kilojoule to Calorie
- Calorie to Joule
- Calorie to Kilojoule
- Kilocalorie to Joule
- Kilocalorie to Kilojoule
- Watt Hour to Joule
- Watt Hour to Kilojoule
- Kilowatt Hour to Joule
- Kilowatt Hour to Kilojoule
- Electronvolt to Joule
- Electronvolt to Kilojoule
- British Thermal Unit to Joule
- British Thermal Unit to Kilojoule
Energy Units Explained
Joule (J)
The joule is the SI unit of energy, defined as the energy transferred when applying a force of one newton through a distance of one meter. It is named after the English physicist James Prescott Joule.
Kilojoule (kJ)
A kilojoule is a unit of energy equal to 1,000 joules. It is commonly used in physics, chemistry, and nutrition.
Calorie (cal)
A calorie is a unit of energy equal to the amount of heat needed to raise the temperature of one gram of water by one degree Celsius. It equals approximately 4.184 joules.
Kilocalorie (kcal)
A kilocalorie is a unit of energy equal to 1,000 calories or approximately 4,184 joules. It is commonly used in nutrition and is often referred to as a 'Calorie' (with a capital C).
Watt Hour (Wh)
A watt-hour is a unit of energy equal to 3,600 joules. It represents the energy equivalent to a power of one watt sustained for one hour.
Kilowatt Hour (kWh)
A kilowatt-hour is a unit of energy equal to 3,600,000 joules. It is commonly used as a billing unit for energy delivered to consumers by electric utilities.
Showing 6 of 9 units. View all units in the sidebar.
All Energy Units
- Joule(J)
- Kilojoule(kJ)
- Calorie(cal)
- Kilocalorie(kcal)
- Watt Hour(Wh)
- Kilowatt Hour(kWh)
- Electronvolt(eV)
- British Thermal Unit(BTU)
- Foot-Pound(ft⋅lb)