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THE FEUTEX TOOLKIT

Standard atmosphere to gigapascal

Convert standard atmosphere (atm) to gigapascal (GPa) with adjustable precision, a worked example and a reference table.

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Converters workspace● Runs in your browser
01 Your input
02 Your result
YOUR RESULT
Ready when you are
Conversion formula(value × 101325 + 0 − 0) ÷ 1000000000.0

Reference table

atmGPa
10.000101325
50.000506625
100.00101325
250.002533125
500.00506625
1000.0101325

How the conversion works

The input is converted into Pa using the source factor and offset, then into gigapascal. This keeps unit definitions consistent across the pressure collection.

Definitions and sources

Factors are maintained in the versioned unit dataset. Output is rounded to your selected significant digits; calculation uses JavaScript double precision.

How to use this tool

  1. Enter a finite numeric value in standard atmosphere.
  2. Choose the significant digits for your result.
  3. Copy or download the result, including its formula.

Try this example

10

Accuracy and scope

Gauge and absolute pressure cannot be interconverted without reference pressure. Water/mercury columns use conventional definitions, not an actual measured fluid column.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.