kpa to psi | Exact Decimal + Formula

1 Kilopascal = 0.145038 PSI (Pounds/sq in)

Kilopascals to psi is essential for tire pressure, air tools, and hydraulic equipment when working across metric and imperial gauges.

About Kilopascal and PSI (Pounds/sq in)

Kilopascal (kPa)

A kilopascal is 1,000 pascals.

Where it's used: Tire pressures, building wind loads, and weather systems in metric countries.

PSI (Pounds/sq in) (psi)

PSI (pounds per square inch) measures pressure in pounds of force per square inch, about 6,895 pascals.

Where it's used: Tire pressures, air compressors, hydraulic systems, and plumbing in the US.

Pressure Converter

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Precision

Formula

psi = kPa × 0.145037738

To convert Kilopascal to PSI (Pounds/sq in), use the formula displayed above.

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Kilopascal to PSI (Pounds/sq in): Quick Reference Table

Kilopascal	PSI (Pounds/sq in) (Decimal)	Fraction	Real-world equivalent
0.001 kPa	0.000145 psi	-	fractional unit measurement
0.01 kPa	0.00145 psi	-	fractional unit measurement
0.1 kPa	0.014504 psi	-	fractional unit measurement
0.5 kPa	0.072519 psi	-	fractional unit measurement
1 kPa	0.145038 psi	-	fractional unit measurement
2 kPa	0.290075 psi	-	fractional unit measurement
5 kPa	0.725189 psi	-	fractional unit measurement
10 kPa	1.450377 psi	-	standard single unit scale
25 kPa	3.625943 psi	-	standard single unit scale
50 kPa	7.251887 psi	-	standard single unit scale
100 kPa	14.503774 psi	-	multiple unit increments
250 kPa	36.259434 psi	-	multiple unit increments
500 kPa	72.518869 psi	-	multiple unit increments
1000 kPa	145.037738 psi	-	multiple unit increments

kPa to psi Formula and Examples

Direct Formula psi = kPa × 0.145037738

Inverse Formula kPa = psi × 6.894757

Mental Math Shortcut

Divide the value by roughly 6.9 to quickly estimate the converted result.

Common Kilopascal to PSI (Pounds/sq in) Calculations

5 kPa = 0.725189 psi
10 kPa = 1.450377 psi
50 kPa = 7.251887 psi
100 kPa = 14.503774 psi
500 kPa = 72.518869 psi

Precision & Practical Use

For example, 10 kPa = 1.450377 psi — roughly standard single unit scale.

Tire pressures are specified to 1 psi or 0.1 bar; scuba and HVAC work also use whole units. The extra decimals here are for engineering precision.

Related Specialist Pressure Calculators & Niche Tools

Pressure represents force acting over a unit of area. Standard pressure scales like PSI, bar, kilopascals (kPa), and atmospheres (atm) are utilized in HVAC, hydraulics, automotive tire inflation, and pneumatic tool operations.

Converting pressure ratings accurately is essential for equipment safety. For instance, European machinery gauges often use bar, whereas American compressors use PSI, necessitating quick conversions to prevent system over-pressurization. Our pressure calculators help technicians easily convert between scales, ensuring pressure vessels, hydraulic lines, and automotive tires are maintained at the correct operational levels.

PSI/Bar/kPa Converter Convert pressure units.

How to Convert Kilopascal to PSI (Pounds/sq in)

How many psi (pounds/sq in)s are in one kilopascal?

One Kilopascal (kPa) equals 0.145038 PSI (Pounds/sq in) (psi). To convert kilopascals to psi (pounds/sq in)s, multiply the kilopascal value by 0.145038.

How do I convert Kilopascal to PSI (Pounds/sq in)?

Multiply your kilopascal value by 0.145038 to get the result in PSI (Pounds/sq in): psi = kPa × 0.145038. For example, 5 kPa = 0.725189 psi.

What is the formula for converting kPa to psi?

The conversion formula is psi = kPa × 0.145038. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for kPa to psi?