The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
Therms to Megajoules
Convert US therm (therm) to Megajoule (MJ) instantly with an exact formula, conversion table, and FAQ.
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Convert therms (therm) to megajoules (MJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
MJ = therm × 105.4804
Results update instantly for Therms to Megajoules conversions.
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Formula
MJ = therm × 105.4804
therm = MJ × 0.00948043428
Conversion table
| 1 therm | 105.480400 MJ |
| 5 therm | 527.402000 MJ |
| 10 therm | 1054.804000 MJ |
| 20 therm | 2109.608000 MJ |
| 50 therm | 5274.020000 MJ |
| 100 therm | 10548.040000 MJ |
| 500 therm | 52740.200000 MJ |
| 1000 therm | 105480.400000 MJ |
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How the formula works
Both us therm and megajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in therms by 105.4804 to get megajoules. To reverse the conversion, multiply a megajoule value by 0.00948043428 to get back to therms.
Frequently asked questions
What is US therm (therm)?
The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
What is Megajoule (MJ)?
A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
How do I convert therms to megajoules?
Multiply the us therm value by 105.4804 to get the equivalent in megajoules. For example, 5 therm × 105.4804 = 527.402000 MJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 105.4804 is an exact, non-rounded value.
Can I convert megajoules back to therms?
Yes. Divide the megajoule value by 105.4804, or multiply it by 0.00948043428, to get therms.
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About converting therms to megajoules
The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage. A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
Use this calculator to move between therms and megajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.