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Power and Energy

MJtoBTU

Convert megajoules (MJ) to International Table BTUs (BTU).

Factor1 MJ = 947.8171 BTU

Converter

MJ

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

Result
947.817BTU

Rendered to 6 significant figures.

Formula

Formula
BTU = MJ × 947.8171

Multiply any value in megajoules by 947.8171 to obtain the value in International Table BTUs.

Worked example

Convert 1 MJ to BTU.

  1. 01Start with 1 MJ.
  2. 02Multiply by the conversion factor: 1 × 947.8171 = 947.817 BTU.
Result1 MJ = 947.817 BTU

Conversion table

MJBTU
1947.82
21895.6
54739.1
109478.2
2018956
5047391
10094782
2001.8956e+5
5004.7391e+5
10009.4782e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from MJ to BTU?
1 MJ equals 947.8171 BTU. To convert, multiply the value in megajoules by 947.8171.
How do I convert 1 MJ to BTU?
1 MJ = 947.817 BTU. For any value, multiply by 947.8171.
How do I convert BTU back to MJ?
Divide by the same factor — or equivalently, multiply by 0.001055056. So 1 BTU = 0.00105506 MJ.
When would I need to convert megajoule to International Table BTU?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
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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