Megapascal is 1000000 pascal units.
Megapascals to Gigapascals Converter — MPa to GPa
Convert Megapascal (MPa) to Gigapascal (GPa) using the exact conversion factor (1 megapascal = 0.001 gigapascal). See the formula, worked examples, and conversion table.
Megapascals to Gigapascals 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.
Gigapascal is 1000000000 pascal units.
Result = input x 1e+6 / 1e+9.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Megapascals to Gigapascals
Megapascal and Gigapascal 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: Megapascal is 1000000 pascal units, and gigapascal is 1000000000 pascal units.
Formula
gigapascals = megapascals × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 megapascal equals 1000000 base units, and 1 gigapascal equals 1000000000 base units, so dividing one by the other gives the direct megapascal-to-gigapascal factor of 0.001.
Simple example
1 MPa × 0.001 = 0.001 GPa
1 megapascal = 0.001 gigapascals.
Real-world example
35 MPa × 0.001 = 0.035 GPa
35 megapascals = 0.035 gigapascals.
Conversion table
| Megapascal (MPa) | Gigapascal (GPa) |
|---|---|
| 1 MPa | 0.001 GPa |
| 5 MPa | 0.005 GPa |
| 10 MPa | 0.01 GPa |
| 25 MPa | 0.025 GPa |
| 50 MPa | 0.05 GPa |
| 100 MPa | 0.1 GPa |
Reverse conversion: Gigapascal to Megapascal
0.001 GPa × 1000 = 1 MPa
0.001 gigapascals = 1 megapascal.
megapascals = gigapascals × 1000
For a page dedicated to this direction, see Gigapascal to Megapascal.
Understanding the Megapascal (MPa)
Megapascal is 1000000 pascal units.
Understanding the Gigapascal (GPa)
Gigapascal is 1000000000 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gigapascals are in 1 megapascal?
1 megapascal equals 0.001 gigapascals, using the exact defined conversion factor rather than an estimate.
How do I convert megapascal to gigapascal?
Multiply the megapascal value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert gigapascal back to megapascal?
Use the reverse factor: 1 gigapascal equals 1,000 megapascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a megapascal?
Megapascal (MPa) is a unit of pressure.
What is a gigapascal?
Gigapascal (GPa) is a unit of pressure.
Is the megapascal to gigapascal conversion exact?
Yes. Both megapascal and gigapascal are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.