Energy Converter
Energy Converter lets you convert energy through the joule: value × source factor / target factor. Enter your own values or load the worked example.
- Copy or download the computed result
- Adjust value
- See the processing method and limits
Method and calculation
Convert energy through the joule: value × source factor / target factor. Factors relative to joule: J = 1; kJ = 1000; MJ = 1000000; Wh = 3600; kWh = 3600000; cal = 4.184; kcal = 4184; BTU (IT) = 1055.05585262.
Inputs and settings
Energy Converter accepts Value (minimum 0); From unit (J, kJ, MJ, Wh, kWh, cal, kcal, BTU (IT)); To unit (J, kJ, MJ, Wh, kWh, cal, kcal, BTU (IT)).
Worked example
Energy Converter example — Value: 1; From unit: "J"; To unit: "kJ". Computed output: { "value": 0.001, "unit": "kJ", "baseValue": 1, "baseUnit": "joule" }
Output and limitations
Energy accounts for accumulated work or heat. A kilowatt-hour is 3.6 million joules, not a power rating. Calories here use the thermochemical definition and BTU uses the International Table convention, both stated explicitly to avoid mixing historical definitions.
Technical references: NIST SI conversion factors