Convert PSI to Kilopascals (kPa) — Free Online Tool
Convert psi to kPa as you type.
US Standard Pressure Converter & CalculatorReference for one unit; displayed values may be rounded.
PSI
Use a dot or comma for decimals, without thousands separators.
Kilopascal
Display rounding does not improve the accuracy of your original measurement. Very large or very small results use scientific notation.
Method and sourceChanging units does not change gauge pressure into absolute pressure or set a safe operating pressure.
NIST SP 811 — pound-force per square inchpsi → kpa — Worked examples
Choose an example to fill the tool. Results use the displayed formula and are rounded for display.
PSI to Kilopascal Conversion Formula
To convert PSI to kilopascals, multiply the PSI value by 6.89476. One PSI equals 6,894.76 pascals and one kilopascal equals 1,000 pascals.
PSI and Kilopascal Explained
PSI (psi)
PSI (pound-force per square inch) is the imperial pressure unit expressing one pound of force applied to one square inch. In SI terms it equals 6,894.76 pascals, or 6.89476 kilopascals. The unit scales so conveniently for American hardware that it persists across tire gauges, compressor regulators, and plumbing codes: a car tire sits near 32 PSI, a shop compressor near 90 PSI, and a hydraulic hose may carry 3,000 PSI. Readings labeled PSIG are gauge values measured above local atmosphere.
Where it is used: PSI is the working pressure unit of the United States — automotive, plumbing, compressed-air, and pressure-washer equipment all quote it.
Origin: The unit comes from 19th-century British engineering, combining the imperial pound-force with the square inch, and it remains entrenched in US customary practice.
Kilopascal (kPa)
The kilopascal (kPa) is 1,000 pascals — a thousand newtons of force per square meter — and the most practical SI pressure unit for everyday magnitudes. Familiar pressures land in comfortable hundreds: car tires near 220 kPa, residential water around 450 kPa, and standard sea-level air at 101.325 kPa. Higher domains use its siblings, with 1,000 kPa making one megapascal and 100 kPa making one bar, so metric documentation slides between prefixes without awkward decimals.
Where it is used: Kilopascals appear on imported vehicle spec plates and international weather reports, in SI engineering datasheets, building codes, and medical device specifications.
Origin: The prefix kilo joined the pascal after the unit entered the SI in 1971, quickly becoming the default for pressures too large for raw pascals but too small for megapascals.
PSI to Kilopascal Conversion Table
Select a value to use it in the calculator.
| PSI (psi) | Kilopascal (kPa) |
|---|---|
| 6.8947572932 kPa | |
| 13.7895145863 kPa | |
| 34.4737864658 kPa | |
| 68.9475729317 kPa | |
| 101.3529322096 kPa | |
| 103.4213593975 kPa | |
| 137.8951458634 kPa | |
| 172.3689323292 kPa | |
| 206.8427187951 kPa | |
| 220.6322333814 kPa | |
| 241.3165052609 kPa | |
| 248.2112625541 kPa | |
| 275.7902917267 kPa | |
| 344.7378646584 kPa | |
| 413.6854375901 kPa | |
| 551.5805834535 kPa | |
| 689.4757293168 kPa | |
| 1034.2135939753 kPa | |
| 1378.9514586337 kPa |
Kilopascal to PSI Conversion Table
| Kilopascal (kPa) | PSI (psi) |
|---|---|
| 10 kPa | 1.4503773773 psi |
| 20 kPa | 2.9007547546 psi |
| 50 kPa | 7.2518868865 psi |
| 100 kPa | 14.503773773 psi |
| 101.325 kPa | 14.6959487755 psi |
| 150 kPa | 21.7556606595 psi |
| 200 kPa | 29.007547546 psi |
| 220 kPa | 31.9083023006 psi |
| 300 kPa | 43.5113213191 psi |
| 400 kPa | 58.0150950921 psi |
| 450 kPa | 65.2669819786 psi |
| 500 kPa | 72.5188688651 psi |
| 600 kPa | 87.0226426381 psi |
| 700 kPa | 101.5264164111 psi |
PSI to Kilopascal in Everyday Objects
Common real-world examples that make PSI and Kilopascal easy to picture at a glance.
| PSI (psi) | Kilopascal (kPa) | |
|---|---|---|
| A compact spare tire | 60 psi | 413.6854375901 kPa |
| A full-size pickup tire | 55 psi | 379.2116511243 kPa |
| A portable inflator preset | 36 psi | 248.2112625541 kPa |
| A fire-line hydrotest | 200 psi | 1378.9514586337 kPa |
| A track-day racing tire | 50 psi | 344.7378646584 kPa |
| A homeowner pressure washer | 1450 psi | 9997.3980750941 kPa |
When You Need PSI to Kilopascal Conversions
Cross-Border Road Trips
Driving from Detroit to Windsor or Seattle to Vancouver? Canadian air pumps read kilopascals — 32 PSI equals 220.6 kPa, so set the dial near 220 to match your US door-jamb sticker.
Hydraulic Hose Datasheets
A hose stamped 3,000 PSI must slot into an international procurement form: 3,000 PSI converts to 20,684.3 kPa, written 20.7 MPa by the overseas supplier.
Sprinkler System Hydrotests
A fire line held at 200 PSI for the two-hour NFPA test gets documented as 1,379.0 kPa on engineering submittals and inspection reports.
Turbo Boost Tuning
Your tuner raises boost from 8 PSI to 15 PSI, and the ECU logs the change in kilopascals — that's 55.2 kPa to 103.4 kPa of manifold pressure.
Related Pressure Conversions
How to Use
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1
Enter PSI Value
Type the PSI reading from your gauge — common entries include pickup tires (35-80 PSI), road bike tires (90-120 PSI), and garage compressors (90-175 PSI)
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2
View kPa Result
The kilopascal equivalent appears instantly. For example, 35 PSI converts to about 241.3 kPa
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3
Copy or Swap
Copy the result or click Swap to convert kilopascals back to PSI
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4
Prep for a Border Crossing
Air pumps in Canada list 220-250 kPa — the same as 32-36 PSI — so convert before you hook up in Windsor or Vancouver
Why Use Be Converter?
Instant Conversion
Get precise PSI to kPa results in real-time as you type — perfect for translating US gauge readings into SI specs
High Accuracy
Uses the exact international standard: 1 PSI = 6,894.76 Pa and 1 kPa = 1,000 Pa, accurate to 6 decimal places
Conversion Table
Quick reference with everyday values like 32 PSI (220.6 kPa), 35 PSI (241.3 kPa), and 90 PSI (620.5 kPa)
Bidirectional
Easily swap between PSI and kilopascals with one click for reverse conversions
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Frequently Asked Questions
How many kPa is 1 PSI?
What is 32 PSI in kPa?
What is the difference between PSI and kPa?
How do I convert air compressor pressure from PSI to kPa?
Is kPa the same as bar?
How many kPa is 40 PSI?
Why do Canadian gas stations show kPa on air pumps?
What kPa should my passenger car tires be?
About the PSI to kPa Converter
Our free online PSI to kilopascal converter delivers instant, accurate conversions between America's everyday pressure unit and the SI metric standard. Whether you're decoding an imported car's spec sheet, working through an engineering problem set, documenting an NFPA fire-line hydrostatic test, or dialing in turbo boost on an ECU that logs kilopascals, this tool nails the math every time. PSI rules American tire gauges, compressors, and pressure washers, while kilopascals dominate engineering documentation and international specifications. Our converter applies the exact factor: 1 PSI equals 6.89476 kPa.
Expert Tips for Converting PSI to Kilopascals
For quick tire work: 30 PSI ≈ 206.8 kPa, 32 PSI ≈ 220.6 kPa, 35 PSI ≈ 241.3 kPa, 36 PSI ≈ 248.2 kPa — the metric equivalents of the pressures on most American door jamb stickers
Mental math shortcut: multiply by 7, then shave off about 1.5% — 40 PSI × 7 = 280, so the real answer lands near 276 kPa. The exact factor is 6.89476 kPa per PSI
Hydraulic and hose ratings often jump scales: a 3,000 PSI hydraulic hose — standard on oilfield rigs from Houston to Midland — is 20,684.3 kPa, written 20.7 MPa on international datasheets
NFPA 25 fire-sprinkler hydrostatic tests at 200 PSI must be documented as 1,379.0 kPa on engineering submittals and municipal forms; rounding to 1,400 kPa is generally acceptable for field paperwork
Turbo boost gauges mix units too: 15 PSI of boost equals 103.4 kPa of manifold pressure — handy when your American tune meets an ECU that logs in kilopascals
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