Gigapascal is 1000000000 pascal units.
Gigapascals to Petapascals Converter — GPa to PPa
Convert Gigapascal (GPa) to Petapascal (PPa) using the exact conversion factor (1 gigapascal = 0.000001 petapascal). See the formula, worked examples, and conversion table.
Gigapascals to Petapascals 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.
Petapascal is 1000000000000000 pascal units.
Result = input x 1e+9 / 1e+15.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gigapascals to Petapascals
Gigapascal and Petapascal 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: Gigapascal is 1000000000 pascal units, and petapascal is 1000000000000000 pascal units.
Formula
petapascals = gigapascals × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 gigapascal equals 1000000000 base units, and 1 petapascal equals 1e+15 base units, so dividing one by the other gives the direct gigapascal-to-petapascal factor of 0.000001.
Simple example
1 GPa × 0.000001 = 0.000001 PPa
1 gigapascal = 0.000001 petapascals.
Real-world example
100 GPa × 0.000001 = 0.0001 PPa
100 gigapascals = 0.0001 petapascals.
Conversion table
| Gigapascal (GPa) | Petapascal (PPa) |
|---|---|
| 1 GPa | 0.000001 PPa |
| 10 GPa | 0.00001 PPa |
| 50 GPa | 0.00005 PPa |
| 100 GPa | 0.0001 PPa |
| 500 GPa | 0.0005 PPa |
| 1,000 GPa | 0.001 PPa |
Reverse conversion: Petapascal to Gigapascal
0.000001 PPa × 1000000 = 1 GPa
0.000001 petapascals = 1 gigapascal.
gigapascals = petapascals × 1000000
For a page dedicated to this direction, see Petapascal to Gigapascal.
Understanding the Gigapascal (GPa)
Gigapascal is 1000000000 pascal units.
Understanding the Petapascal (PPa)
Petapascal is 1000000000000000 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many petapascals are in 1 gigapascal?
1 gigapascal equals 0.000001 petapascals, using the exact defined conversion factor rather than an estimate.
How do I convert gigapascal to petapascal?
Multiply the gigapascal value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert petapascal back to gigapascal?
Use the reverse factor: 1 petapascal equals 1,000,000 gigapascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigapascal?
Gigapascal (GPa) is a unit of engineering.
What is a petapascal?
Petapascal (PPa) is a unit of engineering.
Is the gigapascal to petapascal conversion exact?
Yes. Both gigapascal and petapascal are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.