Pascals to PSI Converter

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Quick answer: To convert pascals to PSI, multiply by 0.0001450377. For example, 10 Pa is 0.001450377 psi. One pascal equals 0.0001450377 psi.

Use the Pascals to PSI Converter

Pascals to PSI formula and what each symbol means

psi = Pa × 0.0001450377

Symbols used in the formula
SymbolMeaning
PaPascal
psiPound per square inch

Pascals to PSI examples

1 Pa

1 Pa × 0.0001450377 = 0.0001450377 psi.

10 Pa

10 Pa × 0.0001450377 = 0.001450377 psi.

100 Pa

100 Pa × 0.0001450377 = 0.01450377 psi.

Pascals compared with PSI

One psi is 6,895 times as large as one Pa, so your number gets smaller when you convert pascals to PSI and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

About pascals and PSI

Pascal (Pa): The SI unit of pressure, one newton per square metre. Pound per square inch (psi): One pound-force per square inch, about 6,894.757 pascals.

Where pascals to PSI conversions are used

Tyre pressure is shown in psi, bar or kPa, depending on the vehicle and country. Weather maps use hectopascals or millibars, and altitude and diving use bar or atmospheres.

How to calculate Pascals to PSI step by step

  1. Enter the value in Pa (the starting unit).
  2. Multiply by 0.0001450377, because 1 Pa = 0.0001450377 psi.
  3. The product is the value in psi. To go back, divide by 0.0001450377 or multiply by 6,894.757.

Popular pressure conversions

How to read your Pascals to PSI result

Quick estimate: multiply by about 0.000145 to get PSI from pascals; this is within 0.1% of the exact factor. The pascal is the SI unit, but gauges use bar, psi, atmospheres or mmHg depending on the field.

PASCALSPSI
10.0001450377
20.0002900755
50.0007251887
100.001450377
200.002900755
500.007251887
1000.01450377
1,0000.1450377

PSI to Pascals: quick table

PSIPASCALS
16,894.757
534,473.79
1068,947.57
25172,368.9
50344,737.9
100689,475.7
2501,723,689
5003,447,379

Common mistakes when calculating Pascals to PSI

  • Treating gauge pressure and absolute pressure as the same: absolute pressure equals gauge plus atmospheric pressure.
  • Dividing when you should multiply: from Pa to psi multiply by 0.0001450377; from psi to Pa divide by 0.0001450377.

Pascals to PSI FAQ

How many psi are in 1 Pa?

1 Pa equals 0.0001450377 psi.

How many Pa are in 1 psi?

1 psi equals 6,894.757 Pa.

Is 1 Pa = 0.0001450377 psi an exact conversion?

The factor is shown rounded to 7 significant figures (0.0001450377). The calculator above uses more digits.

What is a pascal (Pa)?

The SI unit of pressure, one newton per square metre.

How can I estimate pascals to PSI in my head?

Quick estimate: multiply by about 0.000145 to get PSI from pascals; this is within 0.1% of the exact factor.

What is 80 Pa in PSI?

80 Pa = 0.01160302 psi (since 80 × 0.0001450377).

What is 500 Pa in PSI?

500 Pa = 0.07251887 psi (since 500 × 0.0001450377).

What is 15 Pa in PSI?

15 Pa = 0.002175566 psi (since 15 × 0.0001450377).

How many decimals should I keep when converting Pa to psi?

Match the precision of your original measurement. For example, 0.001450377 psi rounds to 0.00145 psi at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI derived units