Gigapascals to ksi Converter
Enter the pressure in gigapascals below to convert it to ksi.
Convert Gigapascals to ksi
Enter a value in gigapascals (GPa) to convert to ksi (ksi).
Gigapascal to Kilopounds per Square Inch Conversion Table
Table showing various gigapascal measurements converted to ksi. Click any preset value or arrow to load it into the converter.
| Gigapascals (GPa) | ksi (ksi) |
|---|---|
| 1 GPa | 145.0377377 ksi |
| 2 GPa | 290.0754755 ksi |
| 2.5 GPa | 362.5943443 ksi |
| 5 GPa | 725.1886887 ksi |
| 10 GPa | 1,450.3773773 ksi |
| 15 GPa | 2,175.566066 ksi |
| 20 GPa | 2,900.7547546 ksi |
| 25 GPa | 3,625.9434433 ksi |
| 30 GPa | 4,351.1321319 ksi |
| 50 GPa | 7,251.8868865 ksi |
How to Convert Gigapascals to ksi
To convert gigapascals to ksi, multiply the pressure by the following conversion ratio: 145.0377377 ksi/gigapascal.
Since one gigapascal is equal to 145.0377377 ksi, you can use this simple formula to convert:
The pressure in ksi is equal to the pressure in gigapascals multiplied by 145.0377377.
For example, here's how to convert 5 gigapascals to ksi using the formula above.
How Many ksi Are in a Gigapascal?
There are 145.0377377 ksi in a gigapascal, which is why we use this value in the formula above.
Our gigapascal to kilopounds per square inch calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Gigapascals and ksi are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Gigapascal?
A gigapascal is a unit of pressure equal to 1,000,000,000 pascals (Pa), the base unit for pressure. Equal to 1,000,000,000 Pascals (1,000 MPa), used for elastic modulus of metals and diamond. [1]
The gigapascal is classified as an International System of Units (SI) unit of pressure. Gigapascals can be abbreviated as GPa; for example, 1 gigapascal can be written as 1 GPa.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigapascal (GPa) a convenient decimal multiple of the pascal (Pa).
In practice, gigapascals (GPa) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Kilopounds per Square Inch?
A kilopounds per square inch is a unit of pressure equal to 6,894,757.293168 pascals (Pa), the base unit for pressure. Materials engineering yield strength unit equal to 1,000 PSI (6.89476 MPa). [2]
The kilopounds per square inch is classified as a US customary unit of pressure. ksi can be abbreviated as ksi; for example, 1 kilopounds per square inch can be written as 1 ksi.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilopounds per square inch (ksi) a convenient decimal multiple of the pascal (Pa).
In practice, ksi (ksi) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within US customary workflows, engineering documentation, and technical data sheets.
When converting pressure between gigapascals (GPa) and ksi (ksi), keep full floating-point precision (1 GPa = 145.0377377 ksi; 1 ksi = 0.0068948 GPa) during intermediate calculations and round only the final kilopounds per square inch figure to match your instrument tolerance.
More Gigapascal & Kilopounds per Square Inch Conversions
Need to calculate in the opposite direction? Use our ksi to gigapascals calculator to switch your starting unit immediately. You can also explore related tools such as converting ksi to gigapascals, converting megapascals to ksi, or converting psi to bars.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Gigapascals (GPa) to ksi (ksi)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Gigapascal (GPa) & Kilopounds per Square Inch (ksi) (ksi)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (GPa to ksi)