Calorie to Joule
Convert Calorie (cal) to Joule (J) instantly.
From unit
Calorie
To unit
Joule
Supported energy units
This converter supports 14 units. Each conversion is calculated using the standard SI definition where applicable.
- Joule (J)
- Kilojoule (kJ)
- Megajoule (MJ)
- Calorie (cal)
- Kilocalorie (kcal)
- Watt-hour (Wh)
- Kilowatt-hour (kWh)
- Megawatt-hour (MWh)
- BTU (BTU)
- Therm (thm)
- Electron Volt (eV)
- Erg (erg)
- Foot-pound (ft·lb)
- Horsepower-hour (hp·h)
Popular energy conversions
Quick reference for the most-searched energy conversions.
Energy converter FAQ
- How many kilojoules are in 1 kilocalorie?
- 1 kilocalorie (kcal) equals 4.184 kilojoules (kJ).
- How many joules are in 1 kilowatt-hour?
- 1 kilowatt-hour (kWh) equals 3600000 joules (J).
- How many joules are in 1 btu?
- 1 btu (BTU) equals 1055.06 joules (J).
- How many joules are in 1 calorie?
- 1 calorie (cal) equals 4.184 joules (J).
- How many kilowatt-hours are in 1 horsepower-hour?
- 1 horsepower-hour (hp·h) equals 0.7456944444 kilowatt-hours (kWh).
- How many kilojoules are in 1 therm?
- 1 therm (thm) equals 105506 kilojoules (kJ).
- What is a energy converter?
- A energy converter instantly translates a value from one energy unit to another. Unit Guru supports 14 energy units, with the Joule (J) as the SI base unit.
- How accurate is the energy conversion?
- Every conversion uses the standard SI definition or the official conversion factor. Results are computed in your browser using double-precision arithmetic, so they're as accurate as the source units allow.
- Is the energy converter free?
- Yes — Unit Guru is 100% free with no ads, no signup, and no tracking. All conversions run client-side in your browser.