Bar to Psig
### Pressure Metrology & ASME B40.100 Standards The **American Society of Mechanical Engineers (ASME B40.100)** and **NIST SP 811** govern the distinction between gauge pressure and absolute.
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<iframe src="https://calcusolve.com/converter/bar-to-psig?embed=true" width="100%" height="600" frameborder="0" loading="lazy" title="Bar to Psig"></iframe> ⚖ Scenario Comparison
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📐 Formula
💡 Practical Example
A tire inflator set to 6.0 bar delivers 87.02 psig of gauge pressure (101.72 psia total), which is standard for heavy commercial van and light truck tires.
📖 About Bar to Psig
Pressure Metrology & ASME B40.100 Standards
The American Society of Mechanical Engineers (ASME B40.100) and NIST SP 811 govern the distinction between gauge pressure and absolute pressure.
Primary Pressure Formulas
- Bar to PSIG: P_psig = P_bar(g) × 14.50377
- PSIG to Bar: P_bar(g) = P_psig14.50377 = P_psig × 0.0689476
- Absolute vs Gauge Pressure:
P_psia = P_psig + 14.69595
P_bar(a) = P_bar(g) + 1.01325
- Kilopascals: 1 bar = 100 kPa
How to Use This Calculator
Enter your Pressure Value to Convert (e.g. 6.0), Conversion Direction — choose from Bar Gauge to PSIG (bar(g) → psig), PSIG to Bar Gauge (psig → bar(g)), and Pressure Reference Baseline — choose from Gauge Pressure (Zeroed at 1 atm ambient), Absolute Pressure (Zeroed at absolute vacuum). Results update instantly as you type — adjust any value to compare scenarios.
The Formula
Conversion factors used in this calculator:
1 bar = 14.503773773 psi, 1 atm
Worked Example
A tire inflator set to 6.0 bar delivers 87.02 psig of gauge pressure (101.72 psia total), which is standard for heavy commercial van and light truck tires.
Understanding Your Result
Unit conversion precision: round to the same number of significant figures as your original measurement. Converting 6 feet to meters gives 1.8288 m — but if your measurement was approximate (±1 inch), expressing more than 2 decimal places is false precision. For international trade and technical specifications, SI units (meters, kilograms, liters) are the standard. US customary units (feet, pounds, gallons) differ from Imperial UK units: 1 US gallon = 3.785 L vs. 1 UK gallon = 4.546 L.
💡 Methodological Standards & Calculation Accuracy
- All calculations are performed client-side in your browser using verified, standards-compliant mathematical algorithms.
- Results are provided for educational and informational analysis; verify critical applications with certified domain specialists.
- Ensure input values are entered in consistent units matching the selector options to guarantee accurate outputs.
- Periodic recalibration is recommended whenever baseline assumptions, operating parameters, or external conditions change.
Results are for informational and educational purposes only. Always verify critical decisions with a qualified professional.