How to convert kilopascals to pounds per square inch
One kilopascal equals 0.145038 pounds per square inch, so multiply the number of kilopascals by 0.145038:
psi = kPa × 0.145038
kPa = psi ÷ 0.145038 (1 psi = 6.8948 kPa)
Example: 101.3 kPa → 101.3 × 0.145038 = 14.6923 psi.
Going the other way, divide by 0.145038, or multiply by 6.8948; the pounds per square inch to kilopascals converter does it for you.
Everyday values
| Kilopascals | Pounds per square inch | For example |
|---|---|---|
| 101.3 kPa | 14.6923 psi | atmospheric pressure at sea level |
| 200 kPa | 29.0075 psi | a low car tyre pressure |
| 220 kPa | 31.9083 psi | a typical car tyre |
| 250 kPa | 36.2594 psi | a loaded car tyre |
When you need this conversion
Kilopascals are the official SI unit used on tyre placards in many countries, including Australia, Canada and Japan. 220 kPa is 2.2 bar or 31.9 psi. Weather maps use hectopascals (1 hPa = 0.1 kPa).
Kilopascal to pound per square inch conversion table
| kPa | psi | kPa | psi |
|---|---|---|---|
| 50 kPa | 7.2519 psi | 550 kPa | 79.7708 psi |
| 100 kPa | 14.5038 psi | 600 kPa | 87.0226 psi |
| 150 kPa | 21.7557 psi | 650 kPa | 94.2745 psi |
| 200 kPa | 29.0075 psi | 700 kPa | 101.526 psi |
| 250 kPa | 36.2594 psi | 750 kPa | 108.778 psi |
| 300 kPa | 43.5113 psi | 800 kPa | 116.03 psi |
| 350 kPa | 50.7632 psi | 850 kPa | 123.282 psi |
| 400 kPa | 58.0151 psi | 900 kPa | 130.534 psi |
| 450 kPa | 65.267 psi | 950 kPa | 137.786 psi |
| 500 kPa | 72.5189 psi | 1,000 kPa | 145.038 psi |
About the units
- Kilopascal (kPa): 1,000 pascals.
- Pound per square inch (psi): one pound-force on one square inch, about 6,894.76 Pa.
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 pounds per square inch are in one kilopascal?
One kilopascal is 0.145038 pounds per square inch. One pound per square inch is 6.8948 kilopascals.
How do I convert kilopascals to pounds per square inch?
Multiply the value in kilopascals by 0.145038. To go back, divide by 0.145038.
What is 101.3 kPa in pounds per square inch?
101.3 kPa = 14.6923 psi.
What is 200 kPa in pounds per square inch?
200 kPa = 29.0075 psi.
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.