How to convert pounds per square inch to kilopascals
One pound per square inch equals 6.8948 kilopascals, so multiply the number of pounds per square inch by 6.8948:
kPa = psi × 6.8948
psi = kPa ÷ 6.8948 (1 kPa = 0.145038 psi)
Example: 14.7 psi → 14.7 × 6.8948 = 101.353 kPa.
Going the other way, divide by 6.8948, or multiply by 0.145038; the kilopascals to pounds per square inch converter does it for you.
Everyday values
| Pounds per square inch | Kilopascals | For example |
|---|---|---|
| 14.7 psi | 101.353 kPa | atmospheric pressure |
| 30 psi | 206.843 kPa | a typical car tyre |
| 35 psi | 241.317 kPa | 35 psi |
| 100 psi | 689.476 kPa | a road bike tyre |
When you need this conversion
One psi is 6.895 kPa. Countries that use kPa on tyre placards include Australia, Canada and Japan; a 32 psi recommendation is about 220 kPa.
Pound per square inch to kilopascal conversion table
| psi | kPa | psi | kPa |
|---|---|---|---|
| 5 psi | 34.4738 kPa | 55 psi | 379.212 kPa |
| 10 psi | 68.9476 kPa | 60 psi | 413.685 kPa |
| 15 psi | 103.421 kPa | 65 psi | 448.159 kPa |
| 20 psi | 137.895 kPa | 70 psi | 482.633 kPa |
| 25 psi | 172.369 kPa | 75 psi | 517.107 kPa |
| 30 psi | 206.843 kPa | 80 psi | 551.581 kPa |
| 35 psi | 241.317 kPa | 85 psi | 586.054 kPa |
| 40 psi | 275.79 kPa | 90 psi | 620.528 kPa |
| 45 psi | 310.264 kPa | 95 psi | 655.002 kPa |
| 50 psi | 344.738 kPa | 100 psi | 689.476 kPa |
About the units
- Pound per square inch (psi): one pound-force on one square inch, about 6,894.76 Pa.
- Kilopascal (kPa): 1,000 pascals.
Both are units of pressure. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many kilopascals are in one pound per square inch?
One pound per square inch is 6.8948 kilopascals. One kilopascal is 0.145038 pounds per square inch.
How do I convert pounds per square inch to kilopascals?
Multiply the value in pounds per square inch by 6.8948. To go back, divide by 6.8948.
What is 14.7 psi in kilopascals?
14.7 psi = 101.353 kPa.
What is 30 psi in kilopascals?
30 psi = 206.843 kPa.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.