US therm used for natural gas energy.
US therms to Attojoules Converter — therm to aJ
Convert US therm (therm) to Attojoule (aJ) using the exact conversion factor (1 us therm = 1.054804e+26 attojoule). See the formula, worked examples, and conversion table.
US therms to Attojoules converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Attojoule is 1e-18 joule units.
Result = input x 1.054804e+8 / 1e-18.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting US therms to Attojoules
US therm and Attojoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: US therm used for natural gas energy, and attojoule is 1e-18 joule units.
Formula
attojoules = us therms × 1.054804e+26
This factor comes from each unit's defined relationship to the category's base unit: 1 us therm equals 105480400 base units, and 1 attojoule equals 1e-18 base units, so dividing one by the other gives the direct us therm-to-attojoule factor of 1.054804e+26.
Simple example
1 therm × 1.054804e+26 = 1.054804e+26 aJ
1 us therm = 1.054804e+26 attojoules.
Real-world example
100 therm × 1.054804e+26 = 1.054804e+28 aJ
100 us therms = 1.054804e+28 attojoules.
Conversion table
| US therm (therm) | Attojoule (aJ) |
|---|---|
| 1 therm | 1.054804e+26 aJ |
| 10 therm | 1.054804e+27 aJ |
| 100 therm | 1.054804e+28 aJ |
| 500 therm | 5.27402e+28 aJ |
| 1,000 therm | 1.054804e+29 aJ |
| 2,000 therm | 2.109608e+29 aJ |
Reverse conversion: Attojoule to US therm
1.054804e+26 aJ × 9.480434e-27 = 1 therm
1.054804e+26 attojoules = 1 us therms.
us therms = attojoules × 9.480434e-27
For a page dedicated to this direction, see Attojoule to US therm.
Understanding the US therm (therm)
US therm used for natural gas energy.
Understanding the Attojoule (aJ)
Attojoule is 1e-18 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attojoules are in 1 us therm?
1 us therm equals 1.054804e+26 attojoules, using the exact defined conversion factor rather than an estimate.
How do I convert us therm to attojoule?
Multiply the us therm value by 1.054804e+26. The converter above does this instantly to whatever precision you set.
How do I convert attojoule back to us therm?
Use the reverse factor: 1 attojoule equals 9.480434e-27 us therms. You can also use the swap control in the converter above to flip the direction instantly.
What is a us therm?
US therm (therm) is a unit of energy.
What is a attojoule?
Attojoule (aJ) is a unit of energy.
Is the us therm to attojoule conversion exact?
Yes. Both us therm and attojoule are defined by fixed standards rather than physical artifacts, so the factor of 1.054804e+26 used above is exact to as many digits as you choose to display.