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Specific Properties

Wh/kgtokcal/kg

Convert watt-hours per kilogram (Wh/kg) to kilocalories per kilogram (kcal/kg).

Factor1 Wh/kg = 0.8604207 kcal/kg

Converter

Wh/kg

Accepts numbers or expressions, e.g. 150 + 14.7

Result
86.0421kcal/kg

Rendered to 6 significant figures.

Formula

Formula
kcal/kg = Wh/kg × 0.8604207

Multiply any value in watt-hours per kilogram by 0.8604207 to obtain the value in kilocalories per kilogram.

Worked example

Convert 100 Wh/kg to kcal/kg.

  1. 01Start with 100 Wh/kg.
  2. 02Multiply by the conversion factor: 100 × 0.8604207 = 86.0421 kcal/kg.
Result100 Wh/kg = 86.0421 kcal/kg

Conversion table

Wh/kgkcal/kg
10.86042
21.7208
54.3021
108.6042
2017.208
5043.021
10086.042
200172.08
500430.21
1000860.42

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from Wh/kg to kcal/kg?
1 Wh/kg equals 0.8604207 kcal/kg. To convert, multiply the value in watt-hours per kilogram by 0.8604207.
How do I convert 1 Wh/kg to kcal/kg?
1 Wh/kg = 0.860421 kcal/kg. For any value, multiply by 0.8604207.
How do I convert kcal/kg back to Wh/kg?
Divide by the same factor — or equivalently, multiply by 1.162222. So 1 kcal/kg = 1.16222 Wh/kg.
When would I need to convert watt-hour per kilogram to kilocalorie per kilogram?
Specific-energy conversions between Wh/kg and kcal/kg are needed in fuel-property datasheets (HHV/LHV), thermodynamic state calculations, battery energy-density comparisons, and combustion analysis. kJ/kg is the SI standard; BTU/lb is common in US fuel specifications.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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