Apex Conversion

PSI to kPa Conversion Chart

Quick-reference chart converting PSI (pounds per square inch) to kilopascals (kPa). Covers 1–250 PSI — for tire pressure, industrial systems, and medical equipment.

For a custom value not in this chart, use the interactive Pounds per Square Inch to Kilopascal converter.

Pounds per Square Inch (psi)Kilopascal (kPa)
1 psi6.89476 kPa
2 psi13.7895 kPa
5 psi34.4738 kPa
10 psi68.9476 kPa
14.696 psi101.325 kPa
15 psi103.421 kPa
20 psi137.895 kPa
25 psi172.369 kPa
30 psi206.843 kPa
32 psi220.632 kPa
35 psi241.317 kPa
40 psi275.79 kPa
45 psi310.264 kPa
50 psi344.738 kPa
60 psi413.685 kPa
70 psi482.633 kPa
80 psi551.581 kPa
90 psi620.528 kPa
100 psi689.476 kPa
120 psi827.371 kPa
150 psi1034.21 kPa
175 psi1206.58 kPa
200 psi1378.95 kPa
250 psi1723.69 kPa

Conversion Formula

kPa = PSI × 6.89476
PSI = kPa ÷ 6.89476

Quick estimate: PSI × 7 ≈ kPa (within 0.8%)

Common tire pressure reference:
  28 PSI = 193.1 kPa  (low inflation warning)
  30 PSI = 206.8 kPa  (typical passenger car min)
  32 PSI = 220.6 kPa  (most common recommended)
  35 PSI = 241.3 kPa  (typical SUV / truck)
  40 PSI = 275.8 kPa  (performance tires / heavy load)
  80 PSI = 551.6 kPa  (bicycle road tires)

Atmospheric pressure: 14.696 PSI = 101.325 kPa = 1 atm

Frequently Asked Questions

How many kPa is 32 PSI?

32 PSI × 6.89476 = 220.6 kPa. This is the most common recommended tire pressure for passenger cars. A quick mental check: 32 × 7 = 224 kPa (actual 220.6 kPa — within 1.5%).

How many kPa is 35 PSI?

35 PSI × 6.89476 = 241.3 kPa. This is common for SUVs, light trucks, and performance tires. Many European and Australian tire pressure labels show both PSI and kPa side by side.

What is standard atmospheric pressure in PSI and kPa?

Standard atmospheric pressure (1 atm) = 14.696 PSI = 101.325 kPa. Tire and industrial pressures are typically gauge pressures (relative to atmosphere), while weather and absolute system pressures use kPa absolute.

Why does my tire pressure gauge show different readings than the car manual?

The car manual and tire sidewall show gauge pressure (above atmospheric). If your gauge shows PSI but the manual lists kPa, multiply the PSI reading by 6.895 to compare. Also ensure you check tire pressure when cold (before driving) — hot tires read 4–6 PSI higher.

What PSI is used in industrial hydraulic systems?

Industrial hydraulic systems commonly operate at 1,500–3,000 PSI (10,340–20,680 kPa). High-pressure systems for construction equipment or precision manufacturing can reach 5,000–10,000 PSI (34,500–68,950 kPa). Always verify the specific system's rated pressure before adjusting.

Related Converters

Pounds per Square Inch → KilopascalKilopascal → Pounds per Square InchPounds per Square Inch → BarBar → Pounds per Square Inch

Related Charts

kPa to PSI Conversion ChartPSI to Bar Conversion Chart

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Need a custom value?

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.