Convert Gigapascals to Bar (GPa to bar)
1 gigapascal (GPa) = 10000 bar. 1 bar = 0.0001 GPa. Example: 15 GPa = 15 × 10000 = 150000 bar.
Also searched as gigapascals to bar, gigapascals in bar, gigapascals into bar, GPa to bar, GPa in bar, GPa into bar, gigapascal to bar, GPa to bar converter and how many bar in a gigapascal.
1 GPa = 10000 bar
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigapascal to bar converter to paste a column from Excel.
How to Convert Gigapascal to Bar
- 1 GPa = 10000 bar
- 1 bar = 0.0001 GPa
- Example: convert 15 GPa to bar: 15 GPa = 15 × 10000 bar = 150000 bar
Formula
bar = GPa × 10000
Derivation from SI units:
- 1 GPa = 10⁹ Pa = 1000 MPa = 1 kN/mm²
- 1 bar = 10⁵ Pa (exact, by definition)
- 1 GPa = 1000000000 Pa ÷ 100000 Pa per bar = 10000 bar
Both units are defined exactly, so the factor is exact. Gigapascal definition: gigapascal; Bar definition: bar.
Worked examples
- A reading of 10 GPa converts to 100000 bar.
10 GPa × 10000 = 100000 bar - A value of 190 GPa is 1900000 bar.
190 GPa × 10000 = 1900000 bar
Gigapascal to Bar conversion table
| Gigapascals (GPa) | Bar |
|---|---|
| 0.5 GPa | 5000 bar |
| 1 GPa | 10000 bar |
| 2 GPa | 20000 bar |
| 3 GPa | 30000 bar |
| 5 GPa | 50000 bar |
| 10 GPa | 100000 bar |
| 45 GPa | 450000 bar |
| 70 GPa | 700000 bar |
| 110 GPa | 1100000 bar |
| 117 GPa | 1170000 bar |
| 190 GPa | 1900000 bar |
| 200 GPa | 2000000 bar |
| 210 GPa | 2100000 bar |
| 400 GPa | 4000000 bar |
| 1000 GPa | 10000000 bar |
Where it's used
Gigapascals are used for young's modulus and shear modulus of metals, ceramics and composites, while bar appear in compressed air and pneumatics (6–8 bar). Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Gigapascal to other pressure units
| Conversion | 1 GPa equals |
|---|---|
| gigapascal to bar | 10000 bar |
| 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 millimeter of mercury | 7500615.758 mmHg |
| gigapascal to inch of water | 4014630.76 inH₂O |
Show 12 more units
| gigapascal to atmosphere | 9869.232667 atm |
|---|---|
| gigapascal to megapascal | 1000 MPa |
| 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 bar are in 1 gigapascal?
1 GPa = 10000 bar.
How do I convert gigapascals to bar?
Multiply the value in GPa by 10000. For example, 15 GPa × 10000 = 150000 bar.
Is the GPa to bar conversion exact?
Yes. Both units are defined exactly, and 1 GPa is exactly 10000 bar.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "bar".
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 Bar (GPa to bar). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/gigapascal-to-bar/
IEEE
Scientific Converters, "Convert Gigapascals to Bar (GPa to bar)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/gigapascal-to-bar/