Is bar the same as PSIG?

No. Bar is a metric unit of absolute pressure, while PSIG measures gauge pressure, which ignores atmospheric pressure. To convert bar to PSIG, subtract the current atmospheric pressure (about 1.013 bar) from the bar value.

Can I convert PSIG back to bar?

Yes. Add the atmospheric pressure (approximately 1.013 bar) to the PSIG value to get the equivalent in bar. Some converters include this reverse calculation automatically.

Why do engineers use PSIG instead of bar?

PSIG is common in North American industrial and plumbing contexts because it reads zero at atmospheric pressure, making it more practical for tank and pipe gauges. Bar is preferred in scientific and international contexts where absolute pressure matters.

Do any of these tools convert bar to PSIA as well?

The Omni Calculator tool includes a PSIA conversion link among its related converters. For the other tools, you would need to add or subtract atmospheric pressure manually to switch between PSIG and PSIA.

Is the conversion factor from bar to psi always 14.5038?

Yes. One bar equals 14.5037738 psi. For most practical purposes, rounding to 14.5 is sufficient, but the precise factor is used by the calculators listed here.

General Conversion6 options compared

Bar to PSIG Converter

Converts pressure measurements between bar and pounds per square inch (PSIG) with instant accuracy. This online utility provides a straightforward conversion interface, allowing users to input values in either unit for immediate results. Beyond simple conversion, the tool supports reverse calculations, ensuring flexibility regardless of the starting measurement or desired output. It also includes...

Other calculators

Editors’ Top PickBased on community votes

Omni Calculator

omnicalculator.com

Our bar to PSIG converter precisely translates pressure measurements from bar to PSIG, offering accurate and user-fri...

Open Omni Calculator Read review →

Other OptionsRanked by votes

02
02
Inch Calculator
inchcalculator.com
This bar pressure conversion calculator converts bar into multiple target units, including psi. It provides formula c...
Open site View details
03
03
Convert-Me.Com
convert-me.com
The page is specifically for converting bar to psi and supports direct value entry with fast results. It also links t...
Open site View details
04
04
Kyle's Converter
kylesconverter.com
This tool converts bars to pounds per square inch (psi), which is the same pressure family commonly used for PSIG con...
Open site View details
05
05
OnlineConversion.com
onlineconversion.com
The pressure conversion tool lets users convert from bar to psi (and many other pressure units) in one form. You can ...
Open site View details
06
06
UnitConverters.net
unitconverters.net
This page provides a dedicated bar-to-psi pressure converter with instant calculation and reverse conversion support....
Open site View details

Side by side

Bar to PSIG Converter options compared

Tool	Best for	Strengths	Limitations
Omni Calculator omnicalculator.com	Quick bar-to-PSIG conversion	Dedicated PSIG output User-friendly layout Related pressure links	Focused only on pressure conversion No multi-unit batch conversion
Inch Calculator inchcalculator.com	Convert bar to many units at once	Converts bar to psi and 15+ other units Provides formula context Free, no registration required	Outputs psi, not specifically PSIG Interface lists many options which can be overwhelming
Convert-Me.Com convert-me.com	Simple bar-to-psi conversion	Direct bar-to-psi entry Free, no subscription Significant figure controls	Labels psi rather than PSIG Fewer contextual explanations
Kyle's Converter kylesconverter.com	Quick bar-to-psi reference with table	Conversion table for common values Free to use without account Reverse conversion support	Basic design, fewer visual aids No dedicated PSIG label
OnlineConversion.com onlineconversion.com	All-in-one pressure unit converter	Converts bar to psi and dozens of other units Immediate results in one form Free, no paid plan required	Labels output as psi, not PSIG Interface lists many units which can be cluttered
UnitConverters.net unitconverters.net	Dedicated bar-to-psi converter with table	Instant calculation and reverse conversion Includes conversion table Free browser use, no account needed	Labels output as psi, not PSIG Minimal design, fewer extras

Buyer's guide

How to choose a bar to psig converter

When picking a bar-to-PSIG converter, decide whether you need only that specific conversion or if you also want to explore other pressure units. If PSIG is your sole goal, choose a tool that outputs PSIG clearly and keeps the interface simple. If you frequently switch between bar, psi, pascals, or other units, a multi-unit converter saves time and avoids opening several pages.

Questions

Bar to PSIG Converter FAQ

Is bar the same as PSIG?: No. Bar is a metric unit of absolute pressure, while PSIG measures gauge pressure, which ignores atmospheric pressure. To convert bar to PSIG, subtract the current atmospheric pressure (about 1.013 bar) from the bar value.
Can I convert PSIG back to bar?: Yes. Add the atmospheric pressure (approximately 1.013 bar) to the PSIG value to get the equivalent in bar. Some converters include this reverse calculation automatically.
Why do engineers use PSIG instead of bar?: PSIG is common in North American industrial and plumbing contexts because it reads zero at atmospheric pressure, making it more practical for tank and pipe gauges. Bar is preferred in scientific and international contexts where absolute pressure matters.
Do any of these tools convert bar to PSIA as well?: The Omni Calculator tool includes a PSIA conversion link among its related converters. For the other tools, you would need to add or subtract atmospheric pressure manually to switch between PSIG and PSIA.
Is the conversion factor from bar to psi always 14.5038?: Yes. One bar equals 14.5037738 psi. For most practical purposes, rounding to 14.5 is sufficient, but the precise factor is used by the calculators listed here.

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