PSI to kPa Converter
Convert pounds per square inch to kilopascals — multiply by 6.895. Results update as you type; exact factors shown.
One pound per square inch is 6.8948 kilopascals — see the exact factor, not a rounded rule of thumb.
How the psi to kpa 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 US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common pressure conversions
| From | To | Units |
|---|---|---|
| 10 psi | 68.9476 kPa | pounds per square inch to kilopascals |
| 14.7 psi | 101.3529 kPa | pounds per square inch to kilopascals |
| 20 psi | 137.8951 kPa | pounds per square inch to kilopascals |
| 25 psi | 172.3689 kPa | pounds per square inch to kilopascals |
| 30 psi | 206.8427 kPa | pounds per square inch to kilopascals |
| 32 psi | 220.6322 kPa | pounds per square inch to kilopascals |
| 35 psi | 241.3165 kPa | pounds per square inch to kilopascals |
| 40 psi | 275.7903 kPa | pounds per square inch to kilopascals |
| 50 psi | 344.7379 kPa | pounds per square inch to kilopascals |
| 60 psi | 413.6854 kPa | pounds per square inch to kilopascals |
| 100 psi | 689.4757 kPa | pounds per square inch to kilopascals |
| 150 psi | 1,034.2136 kPa | pounds per square inch to kilopascals |
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 |
| millimeter of mercury | mmHg | 133.322387415 pascal |
| inch of mercury | inHg | 3,386.389 pascal |
FAQFrequently asked questions about pressure conversion
How many kPa is 1 psi?
6.89476 kPa.
What is 32 psi in kPa?
221 kPa — a typical car tyre.
What is a pascal?
One newton per square meter, the SI unit of pressure.
Is a bar the same as 100 kPa?
Yes, exactly.
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 Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.