Compressibility Unit Converter
Convert an entered compressibility between inverse pascals, inverse bar and inverse psi.
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Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Convert the inverse-pressure unit to Pa⁻¹ using the reciprocal pressure factor.
Compressibility in Pa⁻¹ = value / pascals per pressure unit
Worked example
1 GPa⁻¹ is 10⁻⁹ Pa⁻¹ and approximately 0.00000689475729 psi⁻¹.
Assumptions and input details
Retain the same isothermal or adiabatic definition, pressure, temperature and material state. This is a unit conversion of compressibility, not a pressure conversion or a material lookup. Taking the reciprocal to obtain bulk modulus is a separate calculation. The psi uses international pound-force and inch definitions.
References: NIST: conversion factors by quantity · BIPM: SI quantities and prefixes
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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