Bar to PSI-gauge (psig) Converter
Additional Information:
1 bar = 14.5038 psig
psig (pounds per square inch gauge) is a unit of pressure relative to atmospheric pressure.
To convert from bar to psia (absolute pressure), add 14.7 psi to the psig value.
| Bar | PSI-gauge (psig) | PSI-absolute (psia) |
|---|
Here's a comprehensive table with all the essential information about Bar to PSIG (Pounds per Square Inch Gauge) conversion:
| Bar | PSIG | PSIA | Notes |
|---|---|---|---|
| 0 | 0 | 14.7 | Atmospheric pressure at sea level |
| 1 | 14.5038 | 29.2038 | Standard bar |
| 2 | 29.0076 | 43.7076 | |
| 5 | 72.5190 | 87.2190 | |
| 10 | 145.0380 | 159.7380 | |
| 100 | 1450.3800 | 1465.0800 |
Key Conversion Factors:
- 1 bar = 14.5038 PSIG
- 1 bar = 14.5038 PSI (absolute) + 14.7 PSI (atmospheric) = 29.2038 PSIA
Important Points:
- PSIG vs. PSIA:
- PSIG (Gauge Pressure): Pressure relative to atmospheric pressure
- PSIA (Absolute Pressure): Pressure relative to a perfect vacuum
- At sea level: PSIA = PSIG + 14.7
- Conversion formula:
- PSIG = Bar × 14.5038
- PSIA = (Bar × 14.5038) + 14.7
- Atmospheric pressure:
- 1 atm = 1.01325 bar = 14.7 PSIA = 0 PSIG
- Common applications:
- Tire pressure: Often measured in bar or PSIG
- Industrial processes: Both bar and PSIG are commonly used
- Precision:
- For most practical applications, using 14.5 as the conversion factor is sufficient
- For high-precision calculations, use 14.5038
- Temperature considerations:
- These conversions assume standard temperature (usually 20°C or 68°F)
- For extreme temperatures, additional corrections may be needed
- Altitude effects:
- The relationship between PSIG and PSIA changes with altitude due to varying atmospheric pressure
- At higher altitudes, the difference between PSIG and PSIA decreases
- Safety:
- Always specify whether a pressure is gauge (PSIG) or absolute (PSIA) to avoid confusion
- Misinterpretation can lead to safety issues in pressure-sensitive applications
- Other related units:
- 1 bar = 100 kPa (kilopascals)
- 1 bar = 750.062 mmHg (millimeters of mercury)
- Historical note:
- The bar unit was introduced to replace the "atmosphere" as a unit of pressure
- 1 standard atmosphere = 1.01325 bar
This table and additional information provide a comprehensive overview of the conversion between bar and PSIG, including key conversion factors, important considerations, and related concepts. This knowledge is crucial for various fields including engineering, industrial processes, and scientific applications where pressure measurements and conversions are common.