Convert Gigapascals to Megapascals (GPa to MPa)
1 gigapascal (GPa) = 1000 megapascals (MPa). 1 MPa = 0.001 GPa. Example: 200 GPa = 200 × 1000 = 200000 MPa.
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1 GPa = 1000 MPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigapascal to megapascal converter to paste a column from Excel.
How to Convert Gigapascal to Megapascal
- 1 GPa = 1000 MPa
- 1 MPa = 0.001 GPa
- Example: convert 200 GPa to MPa: 200 GPa = 200 × 1000 MPa = 200000 MPa
Formula
MPa = GPa × 1000
Derivation from SI units:
- 1 GPa = 10⁹ Pa = 1000 MPa = 1 kN/mm²
- 1 MPa = 10⁶ Pa = 1 N/mm²
- 1 GPa = 1000000000 Pa ÷ 1000000 Pa per MPa = 1000 MPa
Both units are defined exactly, so the factor is exact. Gigapascal definition: gigapascal; Megapascal definition: megapascal.
Worked examples
- Steel with a Young's modulus of 200 GPa is 200000 MPa.
200 GPa × 1000 = 200000 MPa - Aluminium with E = 70 GPa is 70000 MPa.
70 GPa × 1000 = 70000 MPa
Gigapascal to Megapascal conversion table
| Gigapascals (GPa) | Megapascals (MPa) |
|---|---|
| 0.5 GPa | 500 MPa |
| 1 GPa | 1000 MPa |
| 2 GPa | 2000 MPa |
| 3 GPa | 3000 MPa |
| 5 GPa | 5000 MPa |
| 10 GPa | 10000 MPa |
| 45 GPa | 45000 MPa |
| 70 GPa | 70000 MPa |
| 110 GPa | 110000 MPa |
| 117 GPa | 117000 MPa |
| 190 GPa | 190000 MPa |
| 200 GPa | 200000 MPa |
| 210 GPa | 210000 MPa |
| 400 GPa | 400000 MPa |
| 1000 GPa | 1000000 MPa |
Where it's used
Elastic moduli and high strengths in GPa are converted to MPa when stress and modulus must be in the same unit, for example in strain = σ/E. Multiply by 1000.
Gigapascal to other pressure units
| Conversion | 1 GPa equals |
|---|---|
| gigapascal to megapascal | 1000 MPa |
| gigapascal to pascal | 1000000000 Pa |
| gigapascal to kilopascal | 1000000 kPa |
| gigapascal to ksi | 145.0377377 ksi |
| gigapascal to kilogram-force per square centimetre | 10197.16213 kgf/cm² |
| gigapascal to psi | 145037.7377 psi |
| gigapascal to bar | 10000 bar |
| gigapascal to millimeter of mercury | 7500615.758 mmHg |
Show 12 more units
| gigapascal to inch of water | 4014630.76 inH₂O |
|---|---|
| gigapascal to atmosphere | 9869.232667 atm |
| gigapascal to newton per square millimetre | 1000 N/mm² |
| gigapascal to kilogram-force per square millimetre | 101.9716213 kgf/mm² |
| gigapascal to millibar | 10000000 mbar |
| gigapascal to torr | 7500616.827 Torr |
| gigapascal to millimeter of water | 101971621.3 mmH₂O |
| gigapascal to centimeter of water | 10197162.13 cmH₂O |
| gigapascal to inch of mercury | 295299.833 inHg |
| gigapascal to decibar | 100000 dbar |
| gigapascal to inch of water (60 °F) | 4018646.52 inH₂O (60 °F) |
| gigapascal to barye | 10000000000 Ba |
Frequently asked questions
How many MPa is 1 GPa?
Exactly 1000 MPa.
How many megapascals are in 1 gigapascal?
1 GPa = 1000 MPa.
How do I convert gigapascals to megapascals?
Multiply the value in GPa by 1000. For example, 200 GPa × 1000 = 200000 MPa.
Is the GPa to MPa conversion exact?
Yes. Both units are defined exactly, and 1 GPa is exactly 1000 MPa.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigapascals to Megapascals (GPa to MPa). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/gigapascal-to-megapascal/
IEEE
Scientific Converters, "Convert Gigapascals to Megapascals (GPa to MPa)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/gigapascal-to-megapascal/