kPa to PSI Conversion Chart
Quick-reference chart converting kilopascals (kPa) to PSI (pounds per square inch). Covers 1–1,750 kPa — for tire pressure, weather data, industrial, and medical applications.
For a custom value not in this chart, use the interactive Kilopascal to Pounds per Square Inch converter.
| Kilopascal (kPa) | Pounds per Square Inch (psi) |
|---|---|
| 1 kPa | 0.145038 psi |
| 10 kPa | 1.45038 psi |
| 50 kPa | 7.25189 psi |
| 100 kPa | 14.5038 psi |
| 101.325 kPa | 14.6959 psi |
| 150 kPa | 21.7557 psi |
| 175 kPa | 25.3816 psi |
| 200 kPa | 29.0075 psi |
| 207 kPa | 30.0228 psi |
| 220 kPa | 31.9083 psi |
| 240 kPa | 34.8091 psi |
| 250 kPa | 36.2594 psi |
| 275 kPa | 39.8854 psi |
| 300 kPa | 43.5113 psi |
| 350 kPa | 50.7632 psi |
| 400 kPa | 58.0151 psi |
| 500 kPa | 72.5189 psi |
| 600 kPa | 87.0226 psi |
| 700 kPa | 101.526 psi |
| 1000 kPa | 145.038 psi |
| 1500 kPa | 217.557 psi |
| 1750 kPa | 253.816 psi |
Conversion Formula
PSI = kPa ÷ 6.89476 (= kPa × 0.145038)
kPa = PSI × 6.89476
Quick estimate: kPa ÷ 7 ≈ PSI (within 0.8%)
Common pressure reference (kPa → PSI):
101.325 kPa = 14.696 PSI (1 standard atmosphere)
207 kPa = 30 PSI (typical car tire min)
220 kPa = 31.9 PSI (≈ 32 PSI tire inflation)
240 kPa = 34.8 PSI (≈ 35 PSI tire inflation)
276 kPa = 40 PSI
Residential water pressure: 275–550 kPa = 40–80 PSIFrequently Asked Questions
How many PSI is 200 kPa?
200 kPa × 0.145038 = 29.0 PSI. Many European and Australian vehicle manuals specify tire pressure in kPa — 200 kPa is approximately 29 PSI, which is at the low end for most passenger cars.
How many PSI is 240 kPa?
240 kPa × 0.145038 = 34.8 PSI — approximately 35 PSI. A common tire pressure for SUVs and light trucks. Quick check: 240 ÷ 7 = 34.3 (actual 34.8 PSI — close enough for everyday use).
What is 100 kPa in PSI?
100 kPa × 0.145038 = 14.50 PSI. Standard atmospheric pressure (1 atm) is 101.325 kPa = 14.696 PSI. 100 kPa is just below atmospheric — a useful reference for pressure calculations.
How does kPa appear on weather reports?
Meteorological pressure is reported in hectopascals (hPa) or millibars (mbar), which are numerically identical (1 hPa = 1 mbar = 0.1 kPa). Standard atmospheric pressure is 1013.25 hPa = 101.325 kPa = 14.696 PSI. In PSI terms, weather pressure variation spans roughly 13.5–15.5 PSI (930–1070 hPa).
What kPa reading indicates low tire pressure?
Most manufacturers consider a tire significantly under-inflated when it falls 25% or more below the recommended pressure. If the recommended pressure is 220 kPa (32 PSI), a reading below 165 kPa (24 PSI) typically triggers a TPMS (tire pressure monitoring system) warning. Always check your vehicle's door-jamb sticker for the specific recommendation.
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This chart covers common values. For any number, use the interactive converter.
Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.