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Specific Properties

kcal/lbtoWh/kg

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

Factor1 kcal/lb = 2.562262 Wh/kg

Converter

kcal/lb

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

Result
2.56226Wh/kg

Rendered to 6 significant figures.

Formula

Formula
Wh/kg = kcal/lb × 2.562262

Multiply any value in kilocalories per pound by 2.562262 to obtain the value in watt-hours per kilogram.

Worked example

Convert 1 kcal/lb to Wh/kg.

  1. 01Start with 1 kcal/lb.
  2. 02Multiply by the conversion factor: 1 × 2.562262 = 2.56226 Wh/kg.
Result1 kcal/lb = 2.56226 Wh/kg

Conversion table

kcal/lbWh/kg
12.5623
25.1245
512.811
1025.623
2051.245
50128.11
100256.23
200512.45
5001281.1
10002562.3

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kcal/lb to Wh/kg?
1 kcal/lb equals 2.562262 Wh/kg. To convert, multiply the value in kilocalories per pound by 2.562262.
How do I convert 1 kcal/lb to Wh/kg?
1 kcal/lb = 2.56226 Wh/kg. For any value, multiply by 2.562262.
How do I convert Wh/kg back to kcal/lb?
Divide by the same factor — or equivalently, multiply by 0.3902801. So 1 Wh/kg = 0.39028 kcal/lb.
When would I need to convert kilocalorie per pound to watt-hour per kilogram?
Specific-energy conversions between kcal/lb and Wh/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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