The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
Therms to Decajoules
Convert US therm (therm) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert therms (therm) to decajoules (daJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
daJ = therm × 10548040
Results update instantly for Therms to Decajoules conversions.
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Formula
daJ = therm × 10548040
therm = daJ × 9.480434280e-08
Conversion table
| 1 therm | 1.054804e+07 daJ |
| 5 therm | 5.274020e+07 daJ |
| 10 therm | 1.054804e+08 daJ |
| 20 therm | 2.109608e+08 daJ |
| 50 therm | 5.274020e+08 daJ |
| 100 therm | 1.054804e+09 daJ |
| 500 therm | 5.274020e+09 daJ |
| 1000 therm | 1.054804e+10 daJ |
Related conversions
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How the formula works
Both us therm and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in therms by 10548040 to get decajoules. To reverse the conversion, multiply a decajoule value by 9.480434280e-08 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 Decajoule (daJ)?
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
How do I convert therms to decajoules?
Multiply the us therm value by 10548040 to get the equivalent in decajoules. For example, 5 therm × 10548040 = 5.274020e+07 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 10548040 is an exact, non-rounded value.
Can I convert decajoules back to therms?
Yes. Divide the decajoule value by 10548040, or multiply it by 9.480434280e-08, to get therms.
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About converting therms to decajoules
The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage. A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Use this calculator to move between therms and decajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.