Convert Psi to KPa

Q: How many kPa are in 1 psi?

Approximately 6.895 kPa. For quick estimates, multiply psi by 7 (within 1.5% accuracy). The precise value is 6.894757293168... kPa.

Q: What is standard atmospheric pressure in psi and kPa?

Standard atmospheric pressure is 14.696 psi = 101.325 kPa (= 1 atm = 1.01325 bar). This is the average sea-level pressure at 15°C.

1 psi equals 6.89476 kPa.

Formula: kPa = psi × 6.89476

Psi to KPa Converter

What Is PSI?

Pounds per square inch (psi) is an imperial unit of pressure. It measures force in pounds applied over one square inch. Common in the US for tire pressure, hydraulic systems, water pressure, and compressed air.

What Is a Kilopascal?

The kilopascal (kPa) is a metric unit of pressure equal to 1,000 pascals. It is the standard in most countries for tire pressure, weather reports, and engineering specifications. 1 atm = 101.325 kPa.

PSI to kPa Formula

The conversion formula is:

kPa = psi × 6.89476

The precise value is 6.894757293168... kPa/psi, derived from the definitions of pound-force and inch. This is a derived value, not defined exactly.

Worked Example

Convert a tire pressure of 35 psi to kPa:

Multiply: 35 × 6.89476 = 241.3 kPa

Quick Estimation

Multiply psi by 7 for a quick approximation. 35 × 7 = 245 kPa (actual: 241.3 — within 1.5%). Common tire values: 30 psi ≈ 207 kPa, 32 psi ≈ 220 kPa, 35 psi ≈ 241 kPa, 40 psi ≈ 276 kPa.

Common Use Cases

Tire pressure: US gauges show psi; Australian, Asian, and European gauges show kPa or bar. A common recommendation of 32 psi = 220 kPa.
Plumbing: Water pressure specifications — US uses psi (typical: 40–80 psi), metric countries use kPa (276–552 kPa).
Industrial: Compressed air system ratings, hydraulic pressures, and equipment specifications.
Scuba diving: Tank pressure conversions between US (psi) and metric (bar/kPa) dive equipment.

Frequently Asked Questions

How many kPa are in 1 psi?

Approximately 6.895 kPa. For quick estimates, multiply psi by 7 (within 1.5% accuracy). The precise value is 6.894757293168... kPa.

How do I quickly estimate psi to kPa?

Multiply psi by 7 for a fast estimate. For tire pressures, memorize the common values: 30 psi = 207 kPa, 32 psi = 220 kPa, 35 psi = 241 kPa, 40 psi = 276 kPa.

What is standard atmospheric pressure in psi and kPa?

Standard atmospheric pressure is 14.696 psi = 101.325 kPa (= 1 atm = 1.01325 bar). This is the average sea-level pressure at 15°C.

What is the difference between kPa and bar?

1 bar = 100 kPa exactly. Bar is convenient for everyday use (tire pressure around 2–3 bar), while kPa gives finer precision. Both are metric; kPa is the official SI-derived unit.

Common Psi to KPa Conversions

Psi to KPa (Part 1)

Psi	KPa	Actions
1 psi	6.89476 kPa
5 psi	34.4738 kPa
10 psi	68.9476 kPa
14.696 psi	101.325 kPa
15 psi	103.421 kPa

Psi to KPa (Part 2)

Psi	KPa	Actions
20 psi	137.895 kPa
30 psi	206.843 kPa
50 psi	344.738 kPa
100 psi	689.476 kPa

Psi to kPa Conversion Table

Reference table with common psi to kpa conversions. All values calculated with high precision.

Psi to KPa Table
0.0001 to 12

Psi	KPa	Actions
0.0001 psi	0.000689476 kPa
0.00025 psi	0.00172369 kPa
0.0005 psi	0.00344738 kPa
0.001 psi	0.00689476 kPa
0.0025 psi	0.0172369 kPa
0.005 psi	0.0344738 kPa
0.01 psi	0.0689476 kPa
0.025 psi	0.172369 kPa
0.05 psi	0.344738 kPa
0.1 psi	0.689476 kPa
14 psi	1.72369 kPa
12 psi	3.44738 kPa

Psi to KPa Table
1 to 100000

Psi	KPa	Actions
1 psi	6.89476 kPa
2 12 psi	17.2369 kPa
5 psi	34.4738 kPa
10 psi	68.9476 kPa
25 psi	172.369 kPa
50 psi	344.738 kPa
100 psi	689.476 kPa
250 psi	1723.69 kPa
500 psi	3447.38 kPa
1000 psi	6894.76 kPa
2500 psi	17236.9 kPa
5000 psi	34473.8 kPa
10000 psi	68947.6 kPa
25000 psi	172369 kPa
50000 psi	344738 kPa
100000 psi	689476 kPa

KPa to Psi Table
0.001 to 5

KPa	Psi	Actions
0.001 kPa	0.000145038 psi
0.0025 kPa	0.000362594 psi
0.005 kPa	0.000725189 psi
0.01 kPa	0.00145038 psi
0.025 kPa	0.00362594 psi
0.05 kPa	0.00725189 psi
0.1 kPa	0.0145038 psi
14 kPa	0.0362594 psi
12 kPa	0.0725189 psi
1 kPa	0.145038 psi
2 12 kPa	0.362594 psi
5 kPa	0.725189 psi

KPa to Psi Table
10 to 1000000

KPa	Psi	Actions
10 kPa	1.45038 psi
25 kPa	3.62594 psi
50 kPa	7.25189 psi
100 kPa	14.5038 psi
250 kPa	36.2594 psi
500 kPa	72.5189 psi
1000 kPa	145.038 psi
2500 kPa	362.594 psi
5000 kPa	725.189 psi
10000 kPa	1450.38 psi
25000 kPa	3625.94 psi
50000 kPa	7251.89 psi
100000 kPa	14503.8 psi
250000 kPa	36259.4 psi
500000 kPa	72518.9 psi
1000000 kPa	145038 psi

Looking for the reverse? Convert KPa to Psi

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Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.