Convert Joule (J) (j) to Kilocalorie (kcal) (kcal)
Category: Energy
1 j = 0.000239 kcal
High-precision rounding: 6 decimals
How to convert joule (j) to kilocalorie (kcal)
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 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.
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.
Related conversions from j
Related conversions to kcal
- btu → kcal BTU (IT)
- cal → kcal Calorie (cal)
- kwh → kcal Kilowatt-hour (kWh)
- wh → kcal Watt-hour (Wh)