PSI to Micropascals Converter
Enter the pressure in psi below to convert it to micropascals.
Convert PSI to Micropascals
Enter a value in psi (psi) to convert to micropascals (µPa).
Pounds per Square Inch to Micropascal Conversion Table
Table showing various pounds per square inch measurements converted to micropascals. Click any preset value or arrow to load it into the converter.
| PSI (psi) | Micropascals (µPa) |
|---|---|
| 0.0000001 psi | 689.4757293 µPa |
| 0.0000002 psi | 1,378.9514586 µPa |
| 0.0000003 psi | 2,068.427188 µPa |
| 0.0000004 psi | 2,757.9029173 µPa |
| 0.0000005 psi | 3,447.3786466 µPa |
| 0.0000006 psi | 4,136.8543759 µPa |
| 0.0000007 psi | 4,826.3301052 µPa |
| 0.0000008 psi | 5,515.8058345 µPa |
| 0.0000009 psi | 6,205.2815639 µPa |
| 0.00000001 psi | 68.9475729 µPa |
How to Convert PSI to Micropascals
To convert psi to micropascals, multiply the pressure by the following conversion ratio: 6,894,757,293.168 micropascals/pounds per square inch.
Since one pounds per square inch is equal to 6,894,757,293.168 micropascals, you can use this simple formula to convert:
The pressure in micropascals is equal to the pressure in psi multiplied by 6,894,757,293.168.
For example, here's how to convert 5 psi to micropascals using the formula above.
How Many Micropascals Are in a Pounds per Square Inch?
There are 6,894,757,293.168 micropascals in a pounds per square inch, which is why we use this value in the formula above.
Our pounds per square inch to micropascal calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
PSI and micropascals are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Pounds per Square Inch?
A pounds per square inch is a unit of pressure equal to 6,894.7572932 pascals (Pa), the base unit for pressure. Imperial & US pressure unit equal to 1 pound-force per square inch (6.89476 kPa). [1]
The pounds per square inch is classified as a US customary and imperial unit of pressure. PSI can be abbreviated as psi; for example, 1 pounds per square inch can be written as 1 psi.
When working with psi (psi) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, psi (psi) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Micropascal?
A micropascal is a unit of pressure equal to 1/1,000,000 of a pascal (0.000001 Pa). One-millionth of a Pascal, reference standard in acoustics. [2]
The micropascal is classified as a metric and SI-compatible unit of pressure. Micropascals can be abbreviated as µPa; for example, 1 micropascal can be written as 1 µPa.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the micropascal (µPa) a convenient decimal multiple of the pascal (Pa).
In practice, micropascals (µPa) are widely used across fine-tolerance laboratory, analytical, and micro-scale pressure measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting pressure between psi (psi) and micropascals (µPa), keep full floating-point precision (1 psi = 6,894,757,293.168 µPa; 1 µPa = 1.450377e-10 psi) during intermediate calculations and round only the final micropascal figure to match your instrument tolerance.
More Pounds per Square Inch & Micropascal Conversions
Need to calculate in the opposite direction? Use our micropascals to psi calculator to switch your starting unit immediately. You can also explore related tools such as converting micropascals to psi, converting psi to bars, or converting psi to kilopascals.
Convert from PSI
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — PSI (psi) to Micropascals (µPa)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Pounds per Square Inch (psi) & Micropascal (µPa)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (psi to µPa)