Petajoule is 1000000000000000 joule units.
Petajoules to US therms Converter — PJ to therm
Convert Petajoule (PJ) to US therm (therm) using the exact conversion factor (1 petajoule = 9,480,434.28 us therm). See the formula, worked examples, and conversion table.
Petajoules to US therms 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.
US therm used for natural gas energy.
Result = input x 1e+15 / 1.054804e+8.
Energy units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Petajoules to US therms
Petajoule and US therm 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: Petajoule is 1000000000000000 joule units, and uS therm used for natural gas energy.
Formula
us therms = petajoules × 9480434.27973
This factor comes from each unit's defined relationship to the category's base unit: 1 petajoule equals 1e+15 base units, and 1 us therm equals 105480400 base units, so dividing one by the other gives the direct petajoule-to-us therm factor of 9480434.27973.
Simple example
1 PJ × 9480434.28 = 9,480,434.28 therm
1 petajoule = 9,480,434.28 us therms.
Real-world example
100 PJ × 9480434.28 = 948,043,428 therm
100 petajoules = 948,043,428 us therms.
Conversion table
| Petajoule (PJ) | US therm (therm) |
|---|---|
| 1 PJ | 9,480,434.28 therm |
| 10 PJ | 94,804,342.8 therm |
| 50 PJ | 474,021,714 therm |
| 100 PJ | 948,043,428 therm |
| 500 PJ | 4,740,217,140 therm |
| 1,000 PJ | 9,480,434,280 therm |
Reverse conversion: US therm to Petajoule
1 therm × 1.054804e-7 = 1.054804e-7 PJ
1 us therm = 1.054804e-7 petajoules.
petajoules = us therms × 1.054804e-7
For a page dedicated to this direction, see US therm to Petajoule.
Understanding the Petajoule (PJ)
Petajoule is 1000000000000000 joule units.
Understanding the US therm (therm)
US therm used for natural gas energy.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many us therms are in 1 petajoule?
1 petajoule equals 9,480,434.28 us therms, using the exact defined conversion factor rather than an estimate.
How do I convert petajoule to us therm?
Multiply the petajoule value by 9480434.28. The converter above does this instantly to whatever precision you set.
How do I convert us therm back to petajoule?
Use the reverse factor: 1 us therm equals 1.054804e-7 petajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a petajoule?
Petajoule (PJ) is a unit of engineering.
What is a us therm?
US therm (therm) is a unit of engineering.
Is the petajoule to us therm conversion exact?
Yes. Both petajoule and us therm are defined by fixed standards rather than physical artifacts, so the factor of 9480434.28 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.