psi to bar Converter - Pounds per Square Inch to Bar
Pounds per Square Inch (psi) to Bar (bar)
Direct answer
1 psi = 0.0689476 bar
bar = psi × 0.0689476
Converter
Conversion formula
bar = psi × 0.0689476
psi = bar × 14.5037680789
Example: 10 psi = 10 × 0.0689476 = 0.689476 bar.
Common conversion table
| psi | bar |
|---|---|
| 1 psi | 0.0689476 bar |
| 2 psi | 0.1378952 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 20 psi | 1.378952 bar |
| 50 psi | 3.44738 bar |
| 100 psi | 6.89476 bar |
| 1,000 psi | 68.9476 bar |
Conversion derivation
Express both psi and bar in the same base unit Pa (pascal), then cancel the shared base unit.
- 1
Rewrite psi in the base unit
- 2
Rewrite bar in the base unit
- 3
Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
PSI to Bar Conversion
The conversion factor between pounds per square inch (psi) and bar is derived by expressing both units in terms of the pascal, the SI unit of pressure. This allows a direct comparison by canceling the shared base unit.
Definition
Pounds per square inch (psi) is an imperial unit measuring pressure as force per area. The bar is a metric unit of pressure, defined as exactly 100,000 pascals.
Principle
To find the conversion factor, each unit is rewritten in pascals. The ratio of their pascal values gives the factor to convert from psi to bar.
Assumptions
- The conversion uses the defined relationships: 1 psi = 6,894.76 Pa and 1 bar = 100,000 Pa.
Cautions
- The derivation and factors assume these exact definitions for psi and bar in pascals.
FAQ
How many bar are in 1 psi?
1 psi = 0.0689476 bar.
How many bar are in 10 psi?
10 psi = 0.689476 bar.
How many bar are in 100 psi?
100 psi = 6.89476 bar.
What is the formula to convert psi to bar?
Use bar = psi × 0.0689476.
How many psi are in 1 bar?
1 bar = 14.5037680789 psi.
What should I check when converting psi to bar?
Use the conversion factor and round the result to the precision required by your calculation.