FORMULA
How to convert
kPa = psi × 6.894757293168Example: 10 psi = 68.94757293 kPa.
PSI → KPA
Pounds Per Square Inch to Kilopascals
Convert pounds per square inch to kilopascals with an exact, deterministic calculation.
LIVE CONVERSIONDECIMAL ENGINE EXACT_
1 psi = 6.894757293168 kPa
MULTI-CONVERT
QUICK ANSWER
1 Pound per square inch
6.894757293168 kPa
REFERENCE TABLE
Pound per square inch to Kilopascal
| pounds per square inch | kilopascals |
|---|---|
| 1 psi | 6.89475729 kPa |
| 5 psi | 34.47378647 kPa |
| 10 psi | 68.94757293 kPa |
| 25 psi | 172.36893233 kPa |
| 50 psi | 344.73786466 kPa |
| 100 psi | 689.47572932 kPa |
ABOUT THIS CONVERSION
Convert pounds per square inch to kilopascals
Pounds per square inch are common on US tire and equipment gauges; kilopascals are the SI-derived values used in many manuals. The conversion changes only the unit scale and does not change whether a reading is gauge or absolute pressure.
Real-world example
A tire reading of 32 psi is 220.63223338 kPa. Inflate to the vehicle manufacturer’s cold-tire specification, not the tire sidewall maximum or a generic converted example.
Rounding and precision
Round to the gauge or specification resolution, not the calculator's maximum display. Safety limits require the tolerance and calibration stated by the manufacturer. Retain guard digits in engineering calculations.
Regional context
Tire labels may show several equivalent units. Psi is common in the United States and United Kingdom, while bar and kPa are widespread elsewhere. Medical conventions often retain mmHg.
Common mistake
Do not mix gauge pressure with absolute pressure. Most tire gauges read above atmospheric pressure, while some engineering data uses absolute pressure; unit conversion alone cannot reconcile them.
Editorial method
Definitions and sources are listed below. Calculations retain more precision than the default display and round only for presentation.
USEFUL ANSWERS
psi to kPa FAQs
Is 1 psi about 7 kPa?
Yes for estimation: 1 psi is approximately 6.89476 kPa.
Why does tire pressure change after driving?
Heating raises the air temperature and pressure; compare pressures under the conditions specified by the manufacturer.
How do I convert pounds per square inch to kilopascals?
Enter the psi value in the calculator. It applies the stored factor and offset definitions and returns the equivalent in kPa; the formula and common-value table are shown on this page.
Is the psi to kPa conversion exact?
Defined measurement relationships are calculated with decimal arithmetic from stored standards. The displayed answer may be rounded for readability. Currency results instead depend on the dated reference rate shown.
FROM UNIT
Pound per square inch
Pounds per square inch (psi) expresses pressure as pound-force applied over one square inch. It measures force distributed over area and does not specify gauge versus absolute reference.
NIST Guide to the SI, SP 811 ↗Definition verified 14 August 2026TO UNIT
Kilopascal
One kilopascal (kPa) equals 1000 pascal units (Pa) in the converter's reference scale. It measures force distributed over area and does not specify gauge versus absolute reference.
NIST Guide to the SI, SP 811 ↗Definition verified 14 August 2026Content reviewed by Akhil Saroop · 16 August 2026 · Report an error on this page