1.25 bar equals approximately 18.13 psi.
To convert from bar to psi, multiply the value in bar by 14.5038, since 1 bar equals exactly 14.5038 pounds per square inch. For 1.25 bar, multiply 1.25 by 14.5038, which results in about 18.13 psi, showing how pressure measured in bar translates into psi units.
Introduction to Pressure Conversion
The process of converting 1.25 bar to psi involves understanding that both units measure pressure but are used in different contexts. Bar is metric and common in Europe, whereas psi is imperial and used mainly in the United States. Knowing their relationship helps in fields like engineering or weather reporting.
Conversion Tool
Result in psi:
Conversion Formula
The formula to convert bar to psi is: psi = bar × 14.5038. This is because 1 bar equals 14.5038 psi, a fixed conversion factor. To convert, you multiply the number of bars by this factor, which scales the pressure into psi units. For example, 2 bars becomes 2 × 14.5038 = 29.0076 psi.
Conversion Example
- Convert 0.5 bar to psi:
- Multiply 0.5 by 14.5038
- 0.5 × 14.5038 = 7.2519 psi
- Convert 2.5 bar to psi:
- Multiply 2.5 by 14.5038
- 2.5 × 14.5038 = 36.2595 psi
- Convert 5 bar to psi:
- Multiply 5 by 14.5038
- 5 × 14.5038 = 72.519 psi
Conversion Chart
| Bar | Psi |
|---|---|
| -23.8 | -345.66 |
| -20.0 | -290.08 |
| -10.0 | -145.04 |
| 0 | 0.00 |
| 10.0 | 145.04 |
| 20.0 | 290.08 |
| 26.2 | 379.69 |
This chart helps you quickly find the psi equivalent of various bar values. Read the left column for bar measurements and find the corresponding psi in the right column. Use it to estimate pressure conversions without calculations.
Related Conversion Questions
- What is the psi equivalent of 1.25 bar when measuring tire pressure?
- How do I convert 1.25 bar to psi for a pressure cooker?
- Is 1.25 bar the same as 18.13 psi in hydraulic systems?
- What is the pressure in psi for 1.25 bar in weather reporting?
- Can I use the conversion of 1.25 bar to psi for scuba diving tanks?
Conversion Definitions
Bar is a metric unit of pressure, where 1 bar equals 100,000 pascals, roughly the atmospheric pressure at sea level. Psi, pounds per square inch, measures force per area in imperial units, where 1 psi is the pressure exerted by one pound-force applied to an area of one square inch.
Conversion FAQs
How accurate is converting bar to psi using the fixed factor?
The conversion factor of 14.5038 is exact, making the calculation very precise, assuming no measurement errors. It is widely accepted in engineering and scientific contexts for converting pressure units reliably.
Can I convert pressures from other units to psi using this method?
Yes, but you need to first convert other units (like atmospheres or pascals) into psi before applying the pressure conversion factor. For example, 1 atmosphere equals 14.7 psi, so conversions involve multiple steps for different units.
Why do different industries prefer bar or psi for pressure measurements?
Different regions and industries have standard units based on historical preferences or measurement systems. Europe often uses bar, especially in meteorology and engineering, while psi remains common in the U.S. automotive and aviation sectors.