Pound/sq inch to Bar Converter
Convert Pound/sq inch (psi) to Bar (bar) instantly. 1 psi = 0.068948 bar.
Pressure Converter
29 units available
1 psi = 0.068948 bar
Formula:
bar = psi × 0.0689475729With your value: 1 psi = 0.06894757 bar
Other Pound/sq inch to Bar conversions
Pound/sq inch to Bar Conversion Table
| Pound/sq inch (psi) | Bar (bar) |
|---|---|
| 0.5 | 0.034474 |
| 1 | 0.068948 |
| 2 | 0.137895 |
| 5 | 0.344738 |
| 10 | 0.689476 |
| 15 | 1.034214 |
| 20 | 1.378951 |
| 25 | 1.723689 |
| 50 | 3.447379 |
| 100 | 6.894757 |
| 250 | 17.236893 |
| 500 | 34.473786 |
| 1000 | 68.947573 |
Bar to Pound/sq inch Conversion Table
| Bar (bar) | Pound/sq inch (psi) |
|---|---|
| 0.5 | 7.251887 |
| 1 | 14.503774 |
| 2 | 29.007548 |
| 5 | 72.518869 |
| 10 | 145.037738 |
| 15 | 217.556607 |
| 20 | 290.075475 |
| 25 | 362.594344 |
| 50 | 725.188689 |
| 100 | 1,450.377377 |
| 250 | 3,625.943443 |
| 500 | 7,251.886887 |
| 1000 | 14,503.773773 |
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.
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
Bar (bar)
Pressure
1 bar = 100 000 Pa exactly.
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Pound/sq inch to Bar
To convert from Pound/sq inch (psi) to Bar (bar), multiply the value by 0.0689475729.
Formula: bar = psi × 0.0689475729
Reverse: psi = bar × 14.503773773
Step-by-Step Example
- Start with your value in Pound/sq inch. For example: 5 psi
- Multiply by the conversion factor: 5 x 0.0689475729
- The result is: 0.344738 bar
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.
About Bar
The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.
Common uses: tire pressure, industrial, meteorology.
Frequently Asked Questions
How many Bar are in 1 Pound/sq inch?
There are exactly 0.0689475729 Bar in 1 Pound/sq inch. This means the conversion factor from Pound/sq inch to Bar is 0.0689475729.
What is the formula to convert Pound/sq inch to Bar?
The formula to convert Pound/sq inch to Bar is: bar = psi × 0.0689475729. For example, to convert 10 Pound/sq inch to Bar, you would multiply 10 by 0.0689475729.
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 is a Bar?
The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.
What are the common uses of Pound/sq inch?
The Pound/sq inch is commonly used in tire pressure (US), hydraulics, HVAC.
Related Pressure Conversions
Cite this page
UnitConvertLab. (2026). Pound/sq inch to Bar converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/psi-to-bar