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Kilopascals to PSI Calculator

Convert pressure between kPa and PSI for automotive and scientific use

Kilopascals (kPa)

PSI (Pounds per Square Inch)

📚 Examples, Formula, and How To

📝 Kilopascals to PSI Formula

Kilopascals to PSI

PSI = kPa × 0.145038

Multiply the pressure in kilopascals by 0.145038 to get PSI

PSI to Kilopascals

kPa = PSI ÷ 0.145038

Divide the pressure in PSI by 0.145038 to get kilopascals

💡 Converting Kilopascals to PSI

Example 1

Convert: 200 kPa to PSI

Start with the conversion formula: PSI = kPa × 0.145038

Substitute the value: PSI = 200 × 0.145038

Calculate: 200 × 0.145038 = 29.0076

Result:29.01 PSI

Example 2

Convert: 40 PSI to kPa

Start with the conversion formula: kPa = PSI ÷ 0.145038

Substitute the value: kPa = 40 ÷ 0.145038

Calculate: 40 ÷ 0.145038 = 275.79

Result:275.8 kPa

📊 Kilopascals to PSI Conversion Table

Common Kilopascals to PSI Conversions

Kilopascals	PSI
50 kPa	7.25 PSI
100 kPa	14.50 PSI
150 kPa	21.76 PSI
200 kPa	29.01 PSI
250 kPa	36.26 PSI
300 kPa	43.51 PSI
400 kPa	58.02 PSI
500 kPa	72.52 PSI
1000 kPa	145.04 PSI

All values are rounded to 4 decimal places for practical use

⚙️ How to Convert Kilopascals to PSI

Conversion Factor

1 kilopascal equals 0.145038 PSI

This is the standard conversion factor for pressure measurements.

Kilopascals to PSI

Multiply kPa by 0.145038 to get PSI

Enter a value in the kPa field to convert to PSI.

PSI to Kilopascals

Divide PSI by 0.145038 to get kPa

Enter a value in the PSI field to convert to kPa.

📚 What are Kilopascals and PSI?

📏 Kilopascal(kPa)

Definition:

A kilopascal is a metric unit of pressure equal to 1,000 pascals. It is commonly used for measuring gas pressure and atmospheric pressure.

History:

The pascal was named after Blaise Pascal and adopted as the SI unit of pressure in 1971. The kilopascal is a practical multiple.

Common Uses:

Weather forecasting and atmospheric pressure
Automotive tire pressure specifications
Medical blood pressure measurements
Gas pressure in appliances
Engineering pressure calculations

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Fun Fact:

Standard atmospheric pressure at sea level is 101.325 kPa. This is why weather reports often mention pressure around 100 kPa!

📏 PSI(PSI)

Definition:

PSI (Pounds per Square Inch) is an imperial unit of pressure representing the force in pounds applied over one square inch.

History:

PSI has been used since the development of steam engines and pressure gauges in the 18th and 19th centuries.

Common Uses:

Tire pressure in the United States
Water pressure in plumbing
Air compressor ratings
Gas pressure measurements
Industrial pressure specifications

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Fun Fact:

A typical car tire is inflated to about 32 PSI (220 kPa). At sea level, atmospheric pressure is about 14.7 PSI!