Convert psi to Gigapascals (psi to GPa)
1 psi = 0.000006894757293 gigapascals (GPa). 1 GPa = 145037.7377 psi. Example: 15 psi = 15 × 0.000006894757293 = 0.0001034213594 GPa.
Also searched as psi to GPa, psi in GPa, psi into gigapascals, psi in gigapascals, psi into gigapascal, psi to gigapascal, psi to gigapascals converter and how many gigapascals in a psi.
1 psi = 0.000006894757293 GPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk psi to gigapascal converter to paste a column from Excel.
How to Convert psi to Gigapascal
- 1 psi = 0.000006894757293 GPa
- 1 GPa = 145037.7377 psi
- Example: convert 15 psi to GPa: 15 psi = 15 × 0.000006894757293 GPa = 0.0001034213594 GPa
Formula
GPa = psi × 0.000006894757293168
or GPa = psi ÷ 145037.7377302
Derivation from SI units:
- 1 psi = 1 lbf/in² = (0.45359237 kg × 9.80665 m/s²) ÷ (0.0254 m)² = 6894.757293168 Pa
- 1 GPa = 10⁹ Pa = 1000 MPa = 1 kN/mm²
- 1 psi = 6894.757293168 Pa ÷ 1000000000 Pa per GPa = 0.000006894757293168 GPa
Both units are defined exactly, so the factor is exact. psi definition: psi; Gigapascal definition: gigapascal.
Worked examples
- A reading of 14.7 psi converts to 0.0001013529322 GPa.
14.7 psi × 0.000006894757293 = 0.0001013529322 GPa - A value of 60 psi is 0.0004136854376 GPa.
60 psi × 0.000006894757293 = 0.0004136854376 GPa
psi to Gigapascal conversion table
| psi | Gigapascals (GPa) |
|---|---|
| 0.01 psi | 6.894757293 × 10⁻⁸ GPa |
| 0.05 psi | 3.447378647 × 10⁻⁷ GPa |
| 0.1 psi | 6.894757293 × 10⁻⁷ GPa |
| 0.25 psi | 0.000001723689323 GPa |
| 0.5 psi | 0.000003447378647 GPa |
| 1 psi | 0.000006894757293 GPa |
| 2 psi | 0.00001378951459 GPa |
| 5 psi | 0.00003447378647 GPa |
| 10 psi | 0.00006894757293 GPa |
| 14.7 psi | 0.0001013529322 GPa |
| 15 psi | 0.0001034213594 GPa |
| 20 psi | 0.0001378951459 GPa |
| 25 psi | 0.0001723689323 GPa |
| 30 psi | 0.0002068427188 GPa |
| 32 psi | 0.0002206322334 GPa |
| 35 psi | 0.0002413165053 GPa |
| 40 psi | 0.0002757902917 GPa |
| 50 psi | 0.0003447378647 GPa |
| 60 psi | 0.0004136854376 GPa |
| 80 psi | 0.0005515805835 GPa |
| 100 psi | 0.0006894757293 GPa |
| 125 psi | 0.0008618446616 GPa |
| 150 psi | 0.001034213594 GPa |
| 200 psi | 0.001378951459 GPa |
| 500 psi | 0.003447378647 GPa |
| 1000 psi | 0.006894757293 GPa |
| 3000 psi | 0.02068427188 GPa |
| 5000 psi | 0.03447378647 GPa |
Where it's used
psi are used for tyre pressure in the United States (about 30–35 psi for cars), while gigapascals appear in young's modulus and shear modulus of metals, ceramics and composites. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
psi to other pressure units
| Conversion | 1 psi equals |
|---|---|
| psi to gigapascal | 0.000006894757293 GPa |
| psi to pascal | 6894.757293 Pa |
| psi to kilopascal | 6.894757293 kPa |
| psi to ksi | 0.001 ksi |
| psi to kilogram-force per square centimetre | 0.07030695796 kgf/cm² |
| psi to bar | 0.06894757293 bar |
| psi to millimeter of mercury | 51.7149252 mmHg |
| psi to inch of water | 27.67990471 inH₂O |
Show 12 more units
| psi to atmosphere | 0.06804596391 atm |
|---|---|
| psi to megapascal | 0.006894757293 MPa |
| psi to newton per square millimetre | 0.006894757293 N/mm² |
| psi to kilogram-force per square millimetre | 0.0007030695796 kgf/mm² |
| psi to millibar | 68.94757293 mbar |
| psi to torr | 51.71493257 Torr |
| psi to millimeter of water | 703.0695796 mmH₂O |
| psi to centimeter of water | 70.30695796 cmH₂O |
| psi to inch of mercury | 2.036020677 inHg |
| psi to decibar | 0.6894757293 dbar |
| psi to inch of water (60 °F) | 27.7075924 inH₂O (60 °F) |
| psi to barye | 68947.57293 Ba |
Frequently asked questions
How many gigapascals are in 1 psi?
1 psi = 0.000006894757293 GPa.
How do I convert psi to gigapascals?
Multiply the value in psi by 0.000006894757293, or divide it by 145037.7377. For example, 15 psi × 0.000006894757293 = 0.0001034213594 GPa.
Is the psi to GPa conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- 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, "pound-force per square inch (psi)".
- 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 psi to Gigapascals (psi to GPa). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/psi-to-gigapascal/
IEEE
Scientific Converters, "Convert psi to Gigapascals (psi to GPa)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/psi-to-gigapascal/