🌡️ psig → psia Converter
Account for atmospheric pressure and obtain absolute psi values.
Gauge pressure omits atmospheric pressure, while absolute pressure includes it. This converter adds the standard atmosphere to psig to deliver psia.
50 psig equals
64.69595 psia
Absolute psi: 64.69595 psi
Kilopascals (absolute): 446.0629 kPa
How to Use This Calculator
Enter psig
Provide the gauge pressure (relative to atmosphere).
Review psia
The converter adds 14.6959 psi to give absolute pressure.
Use kilopascals
kPa is included to integrate with SI documentation.
Formula
psia = psig + 14.6959488
kPa = psia × 6.894757
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
psig (gauge) measures pressure above atmospheric pressure, while psia (absolute) measures pressure relative to a perfect vacuum. Many software tools and datasheets expect absolute values, so converting psig to psia avoids mistakes.
This converter relies on the shared pressure utility, which uses 14.6959488 psi as the standard atmospheric pressure at sea level.
Frequently Asked Questions
What is the difference between psig and psia?
psig excludes atmospheric pressure; psia includes it (psia = psig + 14.6959).
Does altitude change the offset?
Yes. This calculator assumes standard atmosphere. Adjust the offset if working at non-standard conditions.
Can I convert psia back to psig?
Subtract 14.6959488 psi from psia to obtain psig.
Why include kPa?
Kilopascals provide a metric reference for the same absolute pressure.
Frequently Asked Questions
What does the PSIG to PSIA Converter do?
Convert psig to psia instantly with this free online converter. Useful for conversion tasks. Accurate results in your browser. No signup required. Enter your values above to see results instantly in your browser. This page is part of Try To Calculator's free online calculator collection.
Is the PSIG to PSIA Converter free?
Yes. Try To Calculator tools are free to use and do not require an account for this page.
Are my inputs sent to your servers?
No. Calculations run locally in your browser; we do not collect the numbers you type or the results shown.
Is the PSIG to PSIA Converter a substitute for professional advice?
This tool is for education and quick estimates. For medical, legal, tax, or financial decisions, confirm results with a qualified professional.
Where can I find related calculators?
Use the category navigation or the related tools section below to browse more Conversion calculators on Try To Calculator.