⚡ Energy Converters

Joule ↔ Calorie

Convert between joules and calories - fundamental energy units in physics and nutrition science.

SI Unit ↔ Thermochemical | 1 cal = 4.184 J

Joule ↔ Kilowatt-hour

Convert joules to kilowatt-hours for electrical energy measurements and utility billing calculations.

SI Unit ↔ Electrical | 1 kWh = 3.6 MJ

Joule ↔ BTU

Convert joules to British Thermal Units for HVAC, heating, and cooling system calculations.

SI Unit ↔ Imperial | 1 BTU = 1055 J

Joule ↔ Watt-hour

Convert joules to watt-hours for battery capacity and small electrical energy measurements.

SI Unit ↔ Electrical | 1 Wh = 3600 J

Joule ↔ Erg

Convert joules to ergs for physics calculations and scientific applications using CGS units.

SI Unit ↔ CGS | 1 J = 10⁷ erg

Calorie ↔ Kilocalorie

Convert between calories and kilocalories (also called dietary calories or Calories with capital C).

Small cal ↔ Large Cal | 1 kcal = 1000 cal

Calorie ↔ Joule

Convert calories to joules for scientific energy calculations and thermodynamics.

Thermochemical ↔ SI | 1 cal = 4.184 J

Calorie ↔ BTU

Convert calories to British Thermal Units for international energy calculations.

Thermochemical ↔ Imperial | 1 BTU = 252 cal

Kilowatt-hour ↔ Joule

Convert kilowatt-hours to joules for electrical energy analysis and scientific calculations.

Electrical ↔ SI Unit | 1 kWh = 3.6 MJ

Kilowatt-hour ↔ BTU

Convert kilowatt-hours to BTU for HVAC efficiency ratings and energy cost comparisons.

Electrical ↔ Thermal | 1 kWh = 3412 BTU

Kilowatt-hour ↔ Calorie

Convert kilowatt-hours to calories for energy metabolism and efficiency studies.

Electrical ↔ Thermochemical | 1 kWh = 860 kcal

BTU ↔ Joule

Convert British Thermal Units to joules for international energy standards and scientific work.

Imperial ↔ SI Unit | 1 BTU = 1055 J

BTU ↔ Kilowatt-hour

Convert BTU to kilowatt-hours for HVAC system efficiency and electrical equivalents.

Thermal ↔ Electrical | 1 kWh = 3412 BTU

BTU ↔ Calorie

Convert BTU to calories for thermal energy and food energy equivalents.

Imperial ↔ Thermochemical | 1 BTU = 252 cal

Watt-hour ↔ Joule

Convert watt-hours to joules for battery specifications and small electrical energy measurements.

Electrical ↔ SI Unit | 1 Wh = 3600 J

Watt-hour ↔ Kilowatt-hour

Convert between watt-hours and kilowatt-hours for electrical energy scaling.

Small ↔ Large Electrical | 1 kWh = 1000 Wh

Erg ↔ Joule

Convert ergs to joules for physics calculations using CGS and SI unit systems.

CGS ↔ SI Unit | 1 J = 10⁷ erg

Therm ↔ BTU

Convert therms to BTU for natural gas billing and large thermal energy measurements.

Gas Utility ↔ Thermal | 1 therm = 100,000 BTU

Electron Volt ↔ Joule

Convert electron volts to joules for atomic and nuclear physics energy calculations.

Atomic ↔ SI Unit | 1 eV = 1.602×10⁻¹⁹ J

Foot-pound ↔ Joule

Convert foot-pounds force to joules for mechanical work and torque measurements.

Imperial Work ↔ SI Unit | 1 ft⋅lbf = 1.356 J

Food Calorie ↔ Joule

Convert food calories (kilocalories) to joules for nutritional science and metabolism studies.

Nutrition ↔ SI Unit | 1 Cal = 4184 J

Megawatt-hour ↔ Kilowatt-hour

Convert megawatt-hours to kilowatt-hours for power plant output and large-scale energy production.

Large Scale ↔ Utility | 1 MWh = 1000 kWh

Gigawatt-hour ↔ Megawatt-hour

Convert gigawatt-hours to megawatt-hours for national energy statistics and grid management.

Grid Scale ↔ Large Scale | 1 GWh = 1000 MWh