Ronnajoule is 1e+27 joule units.
Ronnajoules to Exajoules Converter — RJ to EJ
Convert Ronnajoule (RJ) to Exajoule (EJ) using the exact conversion factor (1 ronnajoule = 1,000,000,000 exajoule). See the formula, worked examples, and conversion table.
Ronnajoules to Exajoules 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.
Exajoule is 1000000000000000000 joule units.
Result = input x 1e+27 / 1e+18.
Energy units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Ronnajoules to Exajoules
Ronnajoule and Exajoule 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: Ronnajoule is 1e+27 joule units, and exajoule is 1000000000000000000 joule units.
Formula
exajoules = ronnajoules × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 ronnajoule equals 1e+27 base units, and 1 exajoule equals 1e+18 base units, so dividing one by the other gives the direct ronnajoule-to-exajoule factor of 1000000000.
Simple example
1 RJ × 1000000000 = 1,000,000,000 EJ
1 ronnajoule = 1,000,000,000 exajoules.
Real-world example
100 RJ × 1000000000 = 100,000,000,000 EJ
100 ronnajoules = 100,000,000,000 exajoules.
Conversion table
| Ronnajoule (RJ) | Exajoule (EJ) |
|---|---|
| 1 RJ | 1,000,000,000 EJ |
| 10 RJ | 10,000,000,000 EJ |
| 50 RJ | 50,000,000,000 EJ |
| 100 RJ | 100,000,000,000 EJ |
| 500 RJ | 500,000,000,000 EJ |
| 1,000 RJ | 1e+12 EJ |
Reverse conversion: Exajoule to Ronnajoule
1 EJ × 1e-9 = 1e-9 RJ
1 exajoule = 1e-9 ronnajoules.
ronnajoules = exajoules × 1e-9
For a page dedicated to this direction, see Exajoule to Ronnajoule.
Understanding the Ronnajoule (RJ)
Ronnajoule is 1e+27 joule units.
Understanding the Exajoule (EJ)
Exajoule is 1000000000000000000 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many exajoules are in 1 ronnajoule?
1 ronnajoule equals 1,000,000,000 exajoules, using the exact defined conversion factor rather than an estimate.
How do I convert ronnajoule to exajoule?
Multiply the ronnajoule value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert exajoule back to ronnajoule?
Use the reverse factor: 1 exajoule equals 1e-9 ronnajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a ronnajoule?
Ronnajoule (RJ) is a unit of engineering.
What is a exajoule?
Exajoule (EJ) is a unit of engineering.
Is the ronnajoule to exajoule conversion exact?
Yes. Both ronnajoule and exajoule are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 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.