Convert PSI to Kilopascals (kPa) — Free Online Tool

Convert PSI to kilopascals instantly with our free online converter. Ideal for imported car specs, engineering coursework, and cross-border road trips. Fast, accurate PSI to kPa results.

US Standard Pressure Converter & Calculator

1 psi = 6.89476 kpa

The quick answer for 1 PSI — type any value below for the exact result

Enter PSI

psi

PSI

Result in Kilopascals

kpa

Kilopascal

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.

1 psi = 6.89476 kpa

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

PSI (psi)	Kilopascal (kpa)
1 psi	6.89476 kpa
2 psi	13.78952 kpa
5 psi	34.4738 kpa
10 psi	68.9476 kpa
14.7 psi	101.352972 kpa
15 psi	103.4214 kpa
20 psi	137.8952 kpa
25 psi	172.369 kpa
30 psi	206.8428 kpa
32 psi	220.63232 kpa
35 psi	241.3166 kpa
36 psi	248.21136 kpa
40 psi	275.7904 kpa
50 psi	344.738 kpa
60 psi	413.6856 kpa
80 psi	551.5808 kpa
100 psi	689.476 kpa
150 psi	1034.214 kpa
200 psi	1378.952 kpa

Kilopascal to PSI Conversion Table

Kilopascal (kpa)	PSI (psi)
10 kpa	1.4503768079 psi
20 kpa	2.9007536158 psi
50 kpa	7.2518840395 psi
100 kpa	14.5037680789 psi
101.325 kpa	14.695943006 psi
150 kpa	21.7556521184 psi
200 kpa	29.0075361579 psi
220 kpa	31.9082897737 psi
300 kpa	43.5113042368 psi
400 kpa	58.0150723158 psi
450 kpa	65.2669563553 psi
500 kpa	72.5188403947 psi
600 kpa	87.0226084737 psi
700 kpa	101.5263765526 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	413.6856 kpa
A full-size pickup tire	55 psi	379.2118 kpa
A portable inflator preset	36 psi	248.21136 kpa
A fire-line hydrotest	200 psi	1378.952 kpa
A track-day racing tire	50 psi	344.738 kpa
A homeowner pressure washer	1450 psi	9997.402 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.

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How to Use

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)
2

View kPa Result

The kilopascal equivalent appears instantly. For example, 35 PSI converts to about 241.3 kPa
3

Copy or Swap

Copy the result or click Swap to convert kilopascals back to PSI
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?

1 PSI equals 6.89476 kPa. So 30 PSI = 206.8 kPa and 40 PSI = 275.8 kPa — the same range quoted in kilopascals on spec sheets for sedans and crossovers sold in the US.

What is 32 PSI in kPa?

32 × 6.89476 = 220.632 kPa. That's the metric figure printed in many imported owner's manuals for the same 32 PSI cold tire pressure listed on American door jamb stickers.

What is the difference between PSI and kPa?

PSI (pounds per square inch) is the imperial unit Americans see on tire gauges and compressors, while the kilopascal is the SI metric unit that dominates engineering documentation and international standards. 1 kPa = 0.145038 PSI, so a kPa gauge climbs about seven times faster than a PSI dial.

How do I convert air compressor pressure from PSI to kPa?

Multiply PSI by 6.89476. A typical garage compressor at 90 PSI equals 620.5 kPa, a portable inflator at 120 PSI equals 827.4 kPa, and a two-stage shop unit at 175 PSI equals 1,206.6 kPa.

Is kPa the same as bar?

No. One bar equals exactly 100 kPa, or about 14.5 PSI. The kilopascal is the SI unit used in engineering and international specs, while bar shows up on European gauges and imported bike pumps. Your 32 PSI tire is 220.6 kPa but only 2.2 bar.

How many kPa is 40 PSI?

40 PSI × 6.89476 = 275.8 kPa. That's right in the sweet spot for a full-size pickup like an F-150 or Silverado running a heavy load — exactly where TPMS sensors expect to see it.

Why do Canadian gas stations show kPa on air pumps?

Canada runs on metric, so air pumps in Toronto, Vancouver, or Montreal read kilopascals. If your road trip crosses the border, remember 220 kPa ≈ 32 PSI and 240 kPa ≈ 35 PSI — most dual-scale pumps still show PSI on the outer ring.

What kPa should my passenger car tires be?

Most passenger cars sold in the US specify 32-36 PSI cold, which converts to 220-250 kPa. Check the sticker on the driver's-side door jamb; a car recommending 35 PSI needs 241.3 kPa on a metric gauge.

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