ksi to Bars Converter
Enter the pressure in ksi below to convert it to bars.
Convert ksi to Bars
Enter a value in ksi (ksi) to convert to bars (bar).
Kilopounds per Square Inch to Bar Conversion Table
Table showing various kilopounds per square inch measurements converted to bars. Click any preset value or arrow to load it into the converter.
| ksi (ksi) | Bars (bar) |
|---|---|
| 1 ksi | 68.9475729 bar |
| 2 ksi | 137.8951459 bar |
| 2.5 ksi | 172.3689323 bar |
| 5 ksi | 344.7378647 bar |
| 10 ksi | 689.4757293 bar |
| 15 ksi | 1,034.213594 bar |
| 20 ksi | 1,378.9514586 bar |
| 25 ksi | 1,723.6893233 bar |
| 30 ksi | 2,068.427188 bar |
| 50 ksi | 3,447.3786466 bar |
How to Convert ksi to Bars
To convert ksi to bars, multiply the pressure by the following conversion ratio: 68.9475729 bars/kilopounds per square inch.
Since one kilopounds per square inch is equal to 68.9475729 bars, you can use this simple formula to convert:
The pressure in bars is equal to the pressure in ksi multiplied by 68.9475729.
For example, here's how to convert 5 ksi to bars using the formula above.
How Many Bars Are in a Kilopounds per Square Inch?
There are 68.9475729 bars in a kilopounds per square inch, which is why we use this value in the formula above.
Our kilopounds per square inch to bar calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
ksi and bars are both units used to measure pressure. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Bar?
A bar is a unit of pressure equal to 100,000 pascals (Pa), the base unit for pressure. Metric pressure unit equal to 100,000 Pascals (100 kPa). [2]
The bar is classified as a metric and SI-compatible unit of pressure. Bars can be abbreviated as bar; for example, 1 bar can be written as 1 bar.
When working with bars (bar) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, bars (bar) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting pressure between ksi (ksi) and bars (bar), keep full floating-point precision (1 ksi = 68.9475729 bar; 1 bar = 0.0145038 ksi) during intermediate calculations and round only the final bar figure to match your instrument tolerance.
More Kilopounds per Square Inch & Bar Conversions
Need to calculate in the opposite direction? Use our bars to ksi calculator to switch your starting unit immediately. You can also explore related tools such as converting bars to ksi, converting psi to bars, or converting atmospheres to bars.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — ksi (ksi) to Bars (bar)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Kilopounds per Square Inch (ksi) (ksi) & Bar (bar)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (ksi to bar)