Gigapascal to Pound/sq inch Converter
Convert Gigapascal (GPa) to Pound/sq inch (psi) instantly. 1 GPa = 145,037.73773 psi.
Pressure Converter
29 units available
1 GPa = 145,037.73773 psi
Formula:
psi = GPa × 145,037.7377302168With your value: 1 GPa = 145,037.73773022 psi
Other Gigapascal to Pound/sq inch conversions
Gigapascal to Pound/sq inch Conversion Table
| Gigapascal (GPa) | Pound/sq inch (psi) |
|---|---|
| 0.5 | 72,518.868865 |
| 1 | 145,037.73773 |
| 2 | 290,075.47546 |
| 5 | 725,188.688651 |
| 10 | 1,450,377.377302 |
| 15 | 2,175,566.065953 |
| 20 | 2,900,754.754604 |
| 25 | 3,625,943.443255 |
| 50 | 7,251,886.886511 |
| 100 | 14,503,773.773022 |
| 250 | 36,259,434.432554 |
| 500 | 72,518,868.865108 |
| 1000 | 145,037,737.730217 |
Pound/sq inch to Gigapascal Conversion Table
| Pound/sq inch (psi) | Gigapascal (GPa) |
|---|---|
| 0.5 | 3.447379e-6 |
| 1 | 6.894757e-6 |
| 2 | 1.378951e-5 |
| 5 | 3.447379e-5 |
| 10 | 6.894757e-5 |
| 15 | 0.000103 |
| 20 | 0.000138 |
| 25 | 0.000172 |
| 50 | 0.000345 |
| 100 | 0.000689 |
| 250 | 0.001724 |
| 500 | 0.003447 |
| 1000 | 0.006895 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Gigapascal (GPa)
Pressure
Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Pound/sq inch (psi)
Pressure
1 psi = 1 lbf/in² = 6894.757 293 168 361 Pa exactly.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Gigapascal to Pound/sq inch
To convert from Gigapascal (GPa) to Pound/sq inch (psi), multiply the value by 145,037.7377302168.
Formula: psi = GPa × 145,037.7377302168
Reverse: GPa = psi × 0.0000068948
Step-by-Step Example
- Start with your value in Gigapascal. For example: 5 GPa
- Multiply by the conversion factor: 5 x 145,037.7377302168
- The result is: 725,188.688651 psi
About Gigapascal
The gigapascal (GPa) is a unit of pressure and stress. One gigapascal equals 1.000000 × 10^+9 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: pressure calculations, engineering and science, education.
About Pound/sq inch
Pounds per square inch (psi) is an imperial unit of pressure widely used in the US for tire pressure, hydraulics, and engineering.
Common uses: tire pressure (US), hydraulics, HVAC.
Frequently Asked Questions
How many Pound/sq inch are in 1 Gigapascal?
There are exactly 145,037.7377302168 Pound/sq inch in 1 Gigapascal. This means the conversion factor from Gigapascal to Pound/sq inch is 145,037.7377302168.
What is the formula to convert Gigapascal to Pound/sq inch?
The formula to convert Gigapascal to Pound/sq inch is: psi = GPa × 145,037.7377302168. For example, to convert 10 Gigapascal to Pound/sq inch, you would multiply 10 by 145,037.7377302168.
What is a Gigapascal?
The gigapascal (GPa) is a unit of pressure and stress. One gigapascal equals 1.000000 × 10^+9 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Pound/sq inch?
Pounds per square inch (psi) is an imperial unit of pressure widely used in the US for tire pressure, hydraulics, and engineering.
What are the common uses of Gigapascal?
The Gigapascal is commonly used in pressure calculations, engineering and science, education.
Related Pressure Conversions
Cite this page
UnitConvertLab. (2026). Gigapascal to Pound/sq inch converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/gigapascal-to-psi