An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Ergs to Therms
Convert Erg (erg) to US therm (therm) instantly with an exact formula, conversion table, and FAQ.
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Convert ergs (erg) to therms (therm) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
therm = erg × 9.480434280e-16
Results update instantly for Ergs to Therms conversions.
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Formula
therm = erg × 9.480434280e-16
erg = therm × 1.054804000e+15
Conversion table
| 1 erg | 9.480434e-16 therm |
| 5 erg | 4.740217e-15 therm |
| 10 erg | 9.480434e-15 therm |
| 20 erg | 1.896087e-14 therm |
| 50 erg | 4.740217e-14 therm |
| 100 erg | 9.480434e-14 therm |
| 500 erg | 4.740217e-13 therm |
| 1000 erg | 9.480434e-13 therm |
Related conversions
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How the formula works
Both erg and us therm measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ergs by 9.480434280e-16 to get therms. To reverse the conversion, multiply a us therm value by 1.054804000e+15 to get back to ergs.
Frequently asked questions
What is Erg (erg)?
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
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.
How do I convert ergs to therms?
Multiply the erg value by 9.480434280e-16 to get the equivalent in therms. For example, 5 erg × 9.480434280e-16 = 4.740217e-15 therm.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 9.480434280e-16 is an exact, non-rounded value.
Can I convert therms back to ergs?
Yes. Divide the us therm value by 9.480434280e-16, or multiply it by 1.054804000e+15, to get ergs.
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About converting ergs to therms
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule. The US therm is a natural-gas billing unit equal to 100,000 BTU, used by utilities to measure gas usage.
Use this calculator to move between ergs and therms accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.