The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
Therms to Nanojoules
Convert US therm (therm) to Nanojoule (nJ) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Energy calculator
Energy Converter
Convert therms (therm) to nanojoules (nJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
nJ = therm × 1.054804000e+17
Results update instantly for Therms to Nanojoules conversions.
Reserved above the conversion cards and below the converter.
Formula
nJ = therm × 1.054804000e+17
therm = nJ × 9.480434280e-18
Conversion table
| 1 therm | 1.054804e+17 nJ |
| 5 therm | 5.274020e+17 nJ |
| 10 therm | 1.054804e+18 nJ |
| 20 therm | 2.109608e+18 nJ |
| 50 therm | 5.274020e+18 nJ |
| 100 therm | 1.054804e+19 nJ |
| 500 therm | 5.274020e+19 nJ |
| 1000 therm | 1.054804e+20 nJ |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both us therm and nanojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in therms by 1.054804000e+17 to get nanojoules. To reverse the conversion, multiply a nanojoule value by 9.480434280e-18 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 Nanojoule (nJ)?
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
How do I convert therms to nanojoules?
Multiply the us therm value by 1.054804000e+17 to get the equivalent in nanojoules. For example, 5 therm × 1.054804000e+17 = 5.274020e+17 nJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.054804000e+17 is an exact, non-rounded value.
Can I convert nanojoules back to therms?
Yes. Divide the nanojoule value by 1.054804000e+17, or multiply it by 9.480434280e-18, to get therms.
Reserved between the FAQ and the article so the page stays balanced.
About converting therms to nanojoules
The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage. A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
Use this calculator to move between therms and nanojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.