Convert Kilocalorie (kcal) (kcal) to Joule (J) (j)
Category: Energy
1 kcal = 4184 j
High-precision rounding: 6 decimals
How to convert kilocalorie (kcal) to joule (j)
We convert by pivoting through the SI base unit for Energy and applying exact factors where applicable.
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Examples
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Confusing calorie (cal) with kilocalorie (kcal) on nutrition labels.
- Treating BTU definitions interchangeably without noting standard (IT vs other).
About Energy
Energy is the capacity to do work. Joules form the SI base; Wh/kWh align with metering and batteries; calories and BTU survive in nutrition and HVAC. Conversions bridge mechanical, thermal, and electrical perspectives.
About Kilocalorie (kcal)
Kilocalorie (kcal)
Equals 1,000 cal; labeled as ‘Calorie’ on food packaging. Converts to joules for scientific comparisons.
History: Nutrition science standardized kcal for daily intake guidelines and labels.
About Joule (J)
Joule (J)
SI energy unit equal to N·m. Fundamental in physics, electronics (J = W·s), and thermodynamics.
History: Named after James P. Joule. Became universal with SI coherence across mechanical and electrical domains.
Related conversions from kcal
- kcal → btu BTU (IT)
- kcal → cal Calorie (cal)
- kcal → kwh Kilowatt-hour (kWh)
- kcal → wh Watt-hour (Wh)