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Specific Properties

BTU/lbtokcal/lb

Convert British thermal units per pound (BTU/lb) to kilocalories per pound (kcal/lb).

Factor1 BTU/lb = 0.2521643 kcal/lb

Converter

BTU/lb

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

Result
25.2164kcal/lb

Rendered to 6 significant figures.

Formula

Formula
kcal/lb = BTU/lb × 0.2521643

Multiply any value in British thermal units per pound by 0.2521643 to obtain the value in kilocalories per pound.

Worked example

Convert 100 BTU/lb to kcal/lb.

  1. 01Start with 100 BTU/lb.
  2. 02Multiply by the conversion factor: 100 × 0.2521643 = 25.2164 kcal/lb.
Result100 BTU/lb = 25.2164 kcal/lb

Conversion table

BTU/lbkcal/lb
10.25216
20.50433
51.2608
102.5216
205.0433
5012.608
10025.216
20050.433
500126.08
1000252.16

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/lb to kcal/lb?
1 BTU/lb equals 0.2521643 kcal/lb. To convert, multiply the value in British thermal units per pound by 0.2521643.
How do I convert 1 BTU/lb to kcal/lb?
1 BTU/lb = 0.252164 kcal/lb. For any value, multiply by 0.2521643.
How do I convert kcal/lb back to BTU/lb?
Divide by the same factor — or equivalently, multiply by 3.965668. So 1 kcal/lb = 3.96567 BTU/lb.
When would I need to convert British thermal unit per pound to kilocalorie per pound?
Specific-energy conversions between BTU/lb and kcal/lb 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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