Pascals to PSI Converter
Convert pascals to pounds per square inch — one psi is 6,894.76 Pa, so pascals run large. Results update as you type; exact factors shown.
One pascal is 0.0001 pounds per square inch — see the exact factor, not a rounded rule of thumb.
How the pascals to psi converter works
Pressures convert through the pascal (1 N/m²). One bar is exactly 100 kPa; a standard atmosphere is exactly 101.325 kPa; 1 psi is 6.894757 kPa (a pound-force on a square inch); 1 mmHg is 133.322 Pa by the conventional definition.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common pressure conversions
| From | To | Units |
|---|---|---|
| 100 Pa | 0.0145 psi | pascals to pounds per square inch |
| 500 Pa | 0.0725 psi | pascals to pounds per square inch |
| 1,000 Pa | 0.145 psi | pascals to pounds per square inch |
| 5,000 Pa | 0.7252 psi | pascals to pounds per square inch |
| 6,894.76 Pa | 1 psi | pascals to pounds per square inch |
| 10,000 Pa | 1.4504 psi | pascals to pounds per square inch |
| 50,000 Pa | 7.2519 psi | pascals to pounds per square inch |
| 100,000 Pa | 14.5038 psi | pascals to pounds per square inch |
| 101,325 Pa | 14.6959 psi | pascals to pounds per square inch |
| 200,000 Pa | 29.0075 psi | pascals to pounds per square inch |
| 500,000 Pa | 72.5189 psi | pascals to pounds per square inch |
| 1,000,000 Pa | 145.0377 psi | pascals to pounds per square inch |
Units in this converter and their exact factors
| Unit | Symbol | One unit in pascals |
|---|---|---|
| pascal | Pa | 1 pascal |
| kilopascal | kPa | 1,000 pascal |
| megapascal | MPa | 1,000,000 pascal |
| bar | bar | 100,000 pascal |
| millibar (hectopascal) | mbar | 100 pascal |
| standard atmosphere | atm | 101,325 pascal |
| pound per square inch | psi | 6,894.757293168 pascal |
| millimetre of mercury | mmHg | 133.322387415 pascal |
| inch of mercury | inHg | 3,386.389 pascal |
FAQFrequently asked questions about pressure conversion
How many pascals in one psi?
6,894.757 Pa.
What is 100,000 Pa in psi?
14.50 psi — just under one atmosphere.
Why use pascals at all?
It is the SI unit, so it drops straight into physics and engineering equations without a conversion factor.
What is 1000 Pa in psi?
0.145 psi.
Are kilopascals more practical?
Usually yes — everyday pressures are thousands of pascals, which is why gauges are marked in kPa.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.