🛠️ bar(g) to psig Converter
Translate gauge pressure readings between metric and imperial units.
Gauge pressure excludes atmospheric pressure. Use this converter for hydraulic, pneumatic, and process instrumentation data.
Assumes standard atmospheric reference (1 atm).
2 bar(g) equals
29.007548 psig
How to Use This Calculator
Enter gauge pressure in bar
Use the reading from your gauge or process transmitter (bar g).
Read psig
The converter multiplies by 14.5037738 to provide pounds per square inch gauge.
Document the result
Copy into maintenance logs, equipment specs, or conversion tables.
Formula
1 bar(g) ≈ 14.5037738 psig
psig = barg × 14.5037738
This assumes standard atmospheric pressure (14.6959 psi). For other references, adjust accordingly.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Gauge pressure measures the difference between system pressure and atmospheric pressure. Because both bar(g) and psig ignore the same baseline, their conversion is a simple scaling factor.
Use this tool when synchronizing metric instrumentation with imperial equipment, such as North American process plants or automotive service manuals.
If you need absolute pressure, convert bar(g) to bar absolute by adding 1 bar, convert to psi absolute, and then subtract or compare as needed.
Frequently Asked Questions
What’s the difference between psi and psig?
psi (or psia) is absolute pressure referenced to a vacuum. psig is referenced to local atmospheric pressure. Gauges typically report psig.
Does altitude affect the result?
This converter assumes standard sea-level atmospheric pressure. For high-altitude operations, adjust the gauge baseline before converting.
How do I convert back to bar(g)?
Divide psig by 14.5037738. The conversion factor is exact enough for engineering use.
Can I use this for absolute pressure?
No. Convert to absolute pressure first (add 1 bar or 14.6959 psi) before switching units.