Petapascal is 1000000000000000 pascal units.
Petapascals to Ronnapascals Converter — PPa to RPa
Convert Petapascal (PPa) to Ronnapascal (RPa) using the exact conversion factor (1 petapascal = 1e-12 ronnapascal). See the formula, worked examples, and conversion table.
Petapascals to Ronnapascals converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Ronnapascal is 1e+27 pascal units.
Result = input x 1e+15 / 1e+27.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petapascals to Ronnapascals
Petapascal and Ronnapascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: Petapascal is 1000000000000000 pascal units, and ronnapascal is 1e+27 pascal units.
Formula
ronnapascals = petapascals × 1e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 petapascal equals 1e+15 base units, and 1 ronnapascal equals 1e+27 base units, so dividing one by the other gives the direct petapascal-to-ronnapascal factor of 1e-12.
Simple example
1 PPa × 1e-12 = 1e-12 RPa
1 petapascal = 1e-12 ronnapascals.
Real-world example
35 PPa × 1e-12 = 3.5e-11 RPa
35 petapascals = 3.5e-11 ronnapascals.
Conversion table
| Petapascal (PPa) | Ronnapascal (RPa) |
|---|---|
| 1 PPa | 1e-12 RPa |
| 5 PPa | 5e-12 RPa |
| 10 PPa | 1e-11 RPa |
| 25 PPa | 2.5e-11 RPa |
| 50 PPa | 5e-11 RPa |
| 100 PPa | 1e-10 RPa |
Reverse conversion: Ronnapascal to Petapascal
1e-12 RPa × 1e+12 = 1 PPa
1e-12 ronnapascals = 1 petapascal.
petapascals = ronnapascals × 1e+12
For a page dedicated to this direction, see Ronnapascal to Petapascal.
Understanding the Petapascal (PPa)
Petapascal is 1000000000000000 pascal units.
Understanding the Ronnapascal (RPa)
Ronnapascal is 1e+27 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ronnapascals are in 1 petapascal?
1 petapascal equals 1e-12 ronnapascals, using the exact defined conversion factor rather than an estimate.
How do I convert petapascal to ronnapascal?
Multiply the petapascal value by 1e-12. The converter above does this instantly to whatever precision you set.
How do I convert ronnapascal back to petapascal?
Use the reverse factor: 1 ronnapascal equals 1e+12 petapascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a petapascal?
Petapascal (PPa) is a unit of pressure.
What is a ronnapascal?
Ronnapascal (RPa) is a unit of pressure.
Is the petapascal to ronnapascal conversion exact?
Yes. Both petapascal and ronnapascal are defined by fixed standards rather than physical artifacts, so the factor of 1e-12 used above is exact to as many digits as you choose to display.