How do I convert kilopascals to psi?

To convert kilopascals to psi, enter your value above. Our converter supports all common pressure units including PSI, bar, pascals, and atmospheres.

How accurate are these pressure conversions?

Our conversions are accurate to at least 6 decimal places using precise conversion factors. This level of accuracy is suitable for scientific, industrial, and engineering applications.

Kilopascal to PSI Converter

Convert Kilopascals to PSI instantly

From

kPa

Result

0psi

PSI

Conversion Formula

PSI = Kilopascal × 0.145038

Where:

kPa = Kilopascal
psi = PSI

What is a Kilopascal?

The kilopascal (kPa) is a unit of pressure in the metric system of measurement.

What is a PSI?

The psi (psi) is a unit of pressure in the imperial system of measurement.

How to Convert Kilopascal to PSI

Convert kilopascals to psi instantly

Quick Reference:

1 kPa = 0.145038 psi
1 psi = 6.894760 kPa

Common Kilopascal to PSI Conversions

1 kPa
= 0.15 psi

5 kPa
= 0.73 psi

10 kPa
= 1.45 psi

25 kPa
= 3.63 psi

50 kPa
= 7.25 psi

100 kPa
= 14.50 psi

Conversion Reference Table

Kilopascal (kPa)	PSI (psi)
1	0.145
2	0.2901
3	0.4351
4	0.5802
5	0.7252
10	1.4504
15	2.1756
20	2.9008
25	3.6259
50	7.2519
75	10.8778
100	14.5038
250	36.2594
500	72.5188
1,000	145.0377

Quick reference table showing common kilopascals to psi conversions.

Real-World Pressure Conversions

🚗

Tire Pressure

Car tires are typically inflated to 30-35 PSI (2.0-2.4 bar). Proper tire pressure improves fuel efficiency and safety. Converting between PSI, bar, and kPa for international vehicles.

🌤️

Weather and Meteorology

Barometric pressure is measured in millibars (mb) or hectopascals (hPa). Standard pressure is 1013.25 mb. High pressure (>1020 mb) brings clear weather, low pressure (<1000 mb) brings storms.

🤿

Scuba Diving

Underwater pressure increases by 1 atmosphere (14.7 PSI) every 33 feet of depth. Dive computers and tanks use bar or PSI. Understanding pressure is critical for diver safety.

❄️

HVAC and Refrigeration

Air conditioning systems use PSI or bar for refrigerant pressure. Proper pressure ensures efficient cooling. Low pressure indicates leaks, high pressure suggests system problems.

🏥

Medical Applications

Blood pressure is measured in mmHg (millimeters of mercury). Normal blood pressure is around 120/80 mmHg. Medical gas cylinders also use PSI or bar.

🏭

Industrial Processes

Manufacturing uses various pressure units for hydraulics (PSI), pneumatics (bar), and vacuum systems (torr or Pa). Accurate pressure control ensures product quality.

Pressure Conversion FAQs

Common Conversion Mistakes

⚠Confusing the direction of conversion — always check whether you are converting from Kilopascal to PSI or vice versa.
⚠Rounding too early in multi-step calculations. Keep full precision until the final result.
⚠Using outdated or approximate conversion factors. Our converter uses values traceable to international measurement standards.

Sources & Standards

Conversion factors on this page are based on definitions from the International Bureau of Weights and Measures (BIPM) and the National Institute of Standards and Technology (NIST). All factors are accurate to at least 6 decimal places.

Last updated: November 27, 2025