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Specific Properties

BTU/lbtoMJ/kg

Convert British thermal units per pound (BTU/lb) to megajoules per kilogram (MJ/kg).

Factor1 BTU/lb = 0.002326 MJ/kg

Converter

BTU/lb

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

Result
2.326MJ/kg

Rendered to 6 significant figures.

Formula

Formula
MJ/kg = BTU/lb × 0.002326

Multiply any value in British thermal units per pound by 0.002326 to obtain the value in megajoules per kilogram.

Worked example

Convert 1000 BTU/lb to MJ/kg.

  1. 01Start with 1000 BTU/lb.
  2. 02Multiply by the conversion factor: 1000 × 0.002326 = 2.326 MJ/kg.
Result1000 BTU/lb = 2.326 MJ/kg

Conversion table

BTU/lbMJ/kg
10.002326
20.004652
50.01163
100.02326
200.04652
500.1163
1000.2326
2000.4652
5001.163
10002.326

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/lb to MJ/kg?
1 BTU/lb equals 0.002326 MJ/kg. To convert, multiply the value in British thermal units per pound by 0.002326.
How do I convert 1 BTU/lb to MJ/kg?
1 BTU/lb = 0.002326 MJ/kg. For any value, multiply by 0.002326.
How do I convert MJ/kg back to BTU/lb?
Divide by the same factor — or equivalently, multiply by 429.9226. So 1 MJ/kg = 429.923 BTU/lb.
When would I need to convert British thermal unit per pound to megajoule per kilogram?
Specific-energy conversions between BTU/lb and MJ/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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