The conversion of 1.5 bar equals approximately 21.75 psig.
This means that a pressure of 1.5 bar is equivalent to about 21.75 pounds per square inch gauge, which measures pressure relative to atmospheric pressure. The calculation involves multiplying the bar value by 14.5, since 1 bar equals 14.5 psig, to find the corresponding psig value.
1.5 bar to psig
To convert 1.5 bar into psig, we use the conversion factor where 1 bar equals 14.5 psig. Therefore, multiplying 1.5 by 14.5 gives the result in psig. This approach simplifies converting between the two units, allowing quick calculation without complex formulas.
Conversion Tool
Result in psig:
Conversion Formula
The formula for converting bar to psig is straightforward: multiply the pressure in bar by 14.5. This is because 1 bar equals 14.5 pounds per square inch gauge. So, for any value in bar, just multiply it by 14.5 to get the psig equivalent. For example, 2 bars times 14.5 equals 29 psig.
Mathematically, it’s written as: psig = bar * 14.5. This works because the bar is a metric unit, whereas psig measures pressure relative to atmospheric pressure in imperial units. The factor 14.5 bridges these two measurement systems.
Conversion Example
- Convert 2.0 bar to psig:
- Multiply 2.0 by 14.5.
- Result: 2.0 * 14.5 = 29 psig.
- Convert 0.75 bar to psig:
- Multiply 0.75 by 14.5.
- Result: 0.75 * 14.5 = 10.875 psig.
- Convert 5.0 bar to psig:
- Multiply 5.0 by 14.5.
- Result: 5.0 * 14.5 = 72.5 psig.
- Convert 1.2 bar to psig:
- Multiply 1.2 by 14.5.
- Result: 1.2 * 14.5 = 17.4 psig.
- Convert 3.5 bar to psig:
- Multiply 3.5 by 14.5.
- Result: 3.5 * 14.5 = 50.75 psig.
Conversion Chart
| Bar | psig |
|---|---|
| -23.5 | -340.75 |
| -22.0 | -319.00 |
| -20.5 | -297.25 |
| -19.0 | -275.50 |
| -17.5 | -253.75 |
| -16.0 | -232.00 |
| -14.5 | -210.25 |
| -13.0 | -188.50 |
| -11.5 | -166.75 |
| -10.0 | -145.00 |
| -8.5 | -123.25 |
| -7.0 | -101.50 |
| -5.5 | -79.75 |
| -4.0 | -58.00 |
| -2.5 | -36.25 |
| -1.0 | -14.50 |
| 0.5 | 7.25 |
| 2.0 | 29.00 |
| 3.5 | 50.75 |
| 5.0 | 72.50 |
| 6.5 | 94.25 |
| 8.0 | 116.00 |
| 9.5 | 137.75 |
| 11.0 | 159.50 |
| 12.5 | 181.25 |
| 14.0 | 203.00 |
| 15.5 | 224.75 |
| 17.0 | 246.50 |
| 18.5 | 268.25 |
| 20.0 | 290.00 |
| 21.5 | 311.75 |
| 23.0 | 333.50 |
| 24.5 | 355.25 |
| 26.0 | 377.00 |
| 26.5 | 384.25 |
This table helps to quickly find the psig value for any bar measurement within the range, by simply locating the bar value in the first column and reading the corresponding psig in the second column.
Related Conversion Questions
- How many psig is 1.5 bar?
- What is the psig equivalent of 1.5 bar pressure?
- Can I convert 1.5 bar directly to psig without a calculator?
- What is the pressure in psig for 1.5 bar in a water system?
- How do I convert bar to psig for a pressure gauge reading of 1.5?
- Is 1.5 bar the same as 21.75 psig?
- What is the formula to change 1.5 bar into psig?
Conversion Definitions
Bar
The bar is a metric unit of pressure, defined as 100,000 pascals, roughly equal to Earth’s atmospheric pressure at sea level. It is used in various scientific and industrial contexts to measure force exerted over an area in the metric system.
Psig
Psig stands for pounds per square inch gauge, measuring pressure relative to atmospheric pressure. It indicates how much pressure exceeds atmospheric pressure, commonly used in engineering, plumbing, and tire pressure measurements in imperial units.
Conversion FAQs
Why is 1.5 bar equal to 21.75 psig?
This is because multiplying 1.5 by 14.5, the conversion factor between bar and psig, results in 21.75 psig, which reflects pressure relative to atmospheric pressure, standard in many pressure measurement systems.
How accurate is the conversion from bar to psig?
The conversion using the factor 14.5 provides a close estimate, though slight variations can occur depending on the exact definition of the bar used. For most practical purposes, this factor delivers sufficiently precise results.
Can I convert any bar value to psig using this method?
Yes, by multiplying the value in bar by 14.5, you can convert any pressure reading from bar to psig, making it a simple and reliable method for pressure calculations.
What if my pressure measurement in bar is negative?
Negative pressure in bar indicates vacuum conditions. To convert to psig, multiply the negative value by 14.5, which will give you a negative psig value, representing vacuum pressure below atmospheric level.