Pounds per Square Inch to Bars (psi → bar)
Formula
1 psi = 0.06894757 barConversion Table
| psi | bar |
|---|---|
| 0 | 0 |
| 1.0000 | 0.068948 |
| 2.0000 | 0.13790 |
| 3.0000 | 0.20684 |
| 4.0000 | 0.27579 |
| 5.0000 | 0.34474 |
| 6.0000 | 0.41369 |
| 7.0000 | 0.48263 |
| 8.0000 | 0.55158 |
| 9.0000 | 0.62053 |
| 10.000 | 0.68948 |
| 11.000 | 0.75842 |
| 12.000 | 0.82737 |
| 13.000 | 0.89632 |
| 14.000 | 0.96527 |
| 15.000 | 1.0342 |
| 16.000 | 1.1032 |
| 17.000 | 1.1721 |
| 18.000 | 1.2411 |
| 19.000 | 1.3100 |
| psi | bar |
|---|---|
| 20.000 | 1.3790 |
| 21.000 | 1.4479 |
| 22.000 | 1.5168 |
| 23.000 | 1.5858 |
| 24.000 | 1.6547 |
| 25.000 | 1.7237 |
| 26.000 | 1.7926 |
| 27.000 | 1.8616 |
| 28.000 | 1.9305 |
| 29.000 | 1.9995 |
| 30.000 | 2.0684 |
| 31.000 | 2.1374 |
| 32.000 | 2.2063 |
| 33.000 | 2.2753 |
| 34.000 | 2.3442 |
| 35.000 | 2.4132 |
| 36.000 | 2.4821 |
| 37.000 | 2.5511 |
| 38.000 | 2.6200 |
| 39.000 | 2.6890 |
| psi | bar |
|---|---|
| 40.000 | 2.7579 |
| 41.000 | 2.8269 |
| 42.000 | 2.8958 |
| 43.000 | 2.9647 |
| 44.000 | 3.0337 |
| 45.000 | 3.1026 |
| 46.000 | 3.1716 |
| 47.000 | 3.2405 |
| 48.000 | 3.3095 |
| 49.000 | 3.3784 |
| 50.000 | 3.4474 |
| 51.000 | 3.5163 |
| 52.000 | 3.5853 |
| 53.000 | 3.6542 |
| 54.000 | 3.7232 |
| 55.000 | 3.7921 |
| 56.000 | 3.8611 |
| 57.000 | 3.9300 |
| 58.000 | 3.9990 |
| 59.000 | 4.0679 |
| psi | bar |
|---|---|
| 60.000 | 4.1369 |
| 61.000 | 4.2058 |
| 62.000 | 4.2747 |
| 63.000 | 4.3437 |
| 64.000 | 4.4126 |
| 65.000 | 4.4816 |
| 66.000 | 4.5505 |
| 67.000 | 4.6195 |
| 68.000 | 4.6884 |
| 69.000 | 4.7574 |
| 70.000 | 4.8263 |
| 71.000 | 4.8953 |
| 72.000 | 4.9642 |
| 73.000 | 5.0332 |
| 74.000 | 5.1021 |
| 75.000 | 5.1711 |
| 76.000 | 5.2400 |
| 77.000 | 5.3090 |
| 78.000 | 5.3779 |
| 79.000 | 5.4469 |
Pounds per Square Inch to Bars Conversion
Converting Pounds per Square Inch (psi) to Bars (bar) is a common pressure conversion. 1 psi equals 0.068948 bar. For example, 100 psi is equal to 6.894757 bar.
Quick Reference Values
1 psi = 0.068948 bar. 5 psi = 0.344738 bar. 10 psi = 0.689476 bar. 25 psi = 1.723689 bar. 50 psi = 3.447378 bar. 100 psi = 6.894757 bar.
What is Pounds per Square Inch?
Pounds per Square Inch (psi) is a unit of pressure. Pounds per square inch (psi) measures pressure as force in pounds applied over one square inch of area. It is defined as 1 psi = 6,894.76 pascals in the SI unit system [nist-si-guide]. Psi originated in English-speaking countries for engineering and industrial applications during the 19th century, formalized through American standards for pressure measurement [nist-si-guide]. Psi remains common in the United States, Canada, and the UK for tire pressure, hydraulic systems, and HVAC industries. It is also referenced in international engineering standards [nist-sp-811].
What is Bars?
Bars (bar) is a unit of pressure. The bar is a unit of pressure equal to exactly 100,000 pascals (Pa). It is used to measure pressure or stress and is slightly less than the standard atmospheric pressure of 101,325 Pa. The bar is not an SI unit but is accepted for use with SI by the BIPM due to its convenience in many engineering fields [bipm-si-brochure]. The bar was introduced by the Norwegian meteorologist Vilhelm Bjerknes in 1909 to simplify atmospheric pressure measurements. It gained wider recognition in the mid-20th century and was formally accepted for use with the SI by the BIPM to provide a practical unit for pressure [bipm-si-brochure]. The bar is widely used in meteorology, engineering, and automotive industries worldwide, especially in Europe and Asia. It remains common in barometric pressure readings and tire pressure specifications, although the pascal is the SI base unit [bipm-si-brochure].
Common Misspellings
People often search for this conversion using these alternate spellings: pounds per square inch, pound per sq inch, psiin, barres, barre, bars pressure. All of these refer to the Pounds per Square Inch to Bars conversion.