Micropascals to PSI Converter
Enter the pressure in micropascals below to convert it to psi.
Convert Micropascals to PSI
Enter a value in micropascals (µPa) to convert to psi (psi).
Micropascal to Pounds per Square Inch Conversion Table
Table showing various micropascal measurements converted to psi. Click any preset value or arrow to load it into the converter.
| Micropascals (µPa) | PSI (psi) |
|---|---|
| 1 µPa | 1.450377e-10 psi |
| 10 µPa | 1.450377e-9 psi |
| 100 µPa | 0.000000015 psi |
| 1,000 µPa | 0.000000145 psi |
| 10,000 µPa | 0.00000145 psi |
| 100,000 µPa | 0.000014504 psi |
| 1,000,000 µPa | 0.000145038 psi |
| 5,000,000 µPa | 0.000725189 psi |
| 10,000,000 µPa | 0.0014504 psi |
| 25,400,000 µPa | 0.003684 psi |
How to Convert Micropascals to PSI
To convert micropascals to psi, multiply the pressure by the following conversion ratio: 1.450377e-10 psi/micropascal.
Since one micropascal is equal to 1.450377e-10 psi, you can use this simple formula to convert:
The pressure in psi is equal to the pressure in micropascals multiplied by 1.450377e-10.
For example, here's how to convert 5 micropascals to psi using the formula above.
How Many PSI Are in a Micropascal?
There are 1.450377e-10 psi in a micropascal, which is why we use this value in the formula above.
Our micropascal to pounds per square inch calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Micropascals and psi are both units used to measure pressure. Keep reading to learn more about each unit.
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. [1]
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.
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). [2]
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.
When converting pressure between micropascals (µPa) and psi (psi), keep full floating-point precision (1 µPa = 1.450377e-10 psi; 1 psi = 6,894,757,293.168 µPa) during intermediate calculations and round only the final pounds per square inch figure to match your instrument tolerance.
More Micropascal & Pounds per Square Inch Conversions
Need to calculate in the opposite direction? Use our psi to micropascals calculator to switch your starting unit immediately. You can also explore related tools such as converting psi to micropascals, converting bars to psi, or converting kilopascals to psi.
Convert from Micropascals
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Micropascals (µPa) to PSI (psi)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Micropascal (µPa) & Pounds per Square Inch (psi)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (µPa to psi)