US therm used for natural gas energy.
US therms to Gigajoules Converter — therm to GJ
Convert US therm (therm) to Gigajoule (GJ) using the exact conversion factor (1 us therm = 0.1054804 gigajoule). See the formula, worked examples, and conversion table.
US therms to Gigajoules converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Gigajoule is 1000000000 joule units.
Result = input x 1.054804e+8 / 1e+9.
Energy units are compatible.
Reserved above the conversion cards and below the converter.
About Converting US therms to Gigajoules
US therm and Gigajoule both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: US therm used for natural gas energy, and gigajoule is 1000000000 joule units.
Formula
gigajoules = us therms × 0.1054804
This factor comes from each unit's defined relationship to the category's base unit: 1 us therm equals 105480400 base units, and 1 gigajoule equals 1000000000 base units, so dividing one by the other gives the direct us therm-to-gigajoule factor of 0.1054804.
Simple example
1 therm × 0.1054804 = 0.1054804 GJ
1 us therm = 0.1054804 gigajoules.
Real-world example
100 therm × 0.1054804 = 10.54804 GJ
100 us therms = 10.54804 gigajoules.
Conversion table
| US therm (therm) | Gigajoule (GJ) |
|---|---|
| 1 therm | 0.1054804 GJ |
| 10 therm | 1.054804 GJ |
| 50 therm | 5.27402 GJ |
| 100 therm | 10.54804 GJ |
| 500 therm | 52.7402 GJ |
| 1,000 therm | 105.4804 GJ |
Reverse conversion: Gigajoule to US therm
0.1054804 GJ × 9.48043428 = 1 therm
0.1054804 gigajoules = 1 us therm.
us therms = gigajoules × 9.48043427973
For a page dedicated to this direction, see Gigajoule to US therm.
Understanding the US therm (therm)
US therm used for natural gas energy.
Understanding the Gigajoule (GJ)
Gigajoule is 1000000000 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gigajoules are in 1 us therm?
1 us therm equals 0.1054804 gigajoules, using the exact defined conversion factor rather than an estimate.
How do I convert us therm to gigajoule?
Multiply the us therm value by 0.1054804. The converter above does this instantly to whatever precision you set.
How do I convert gigajoule back to us therm?
Use the reverse factor: 1 gigajoule equals 9.48043428 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 engineering.
What is a gigajoule?
Gigajoule (GJ) is a unit of engineering.
Is the us therm to gigajoule conversion exact?
Yes. Both us therm and gigajoule are defined by fixed standards rather than physical artifacts, so the factor of 0.1054804 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.