kPa to PSI Converter for Canada
Convert kPa to psi as you type.
Canadian Pressure Converter: kPa, PSI & BarReference for one unit; displayed values may be rounded.
Kilopascal
Use a dot or comma for decimals, without thousands separators.
PSI
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 — international foot / SI unitskpa → psi — Worked examples
Choose an example to fill the tool. Results use the displayed formula and are rounded for display.
Kilopascal to PSI Conversion Formula
To convert kilopascals to PSI, multiply the kPa value by 0.145038. One kilopascal equals 1,000 pascals and one PSI equals 6,894.76 pascals — the same conversion that links a Canadian door-jamb sticker to a US tire gauge.
Kilopascal and PSI Explained
Kilopascal (kPa)
The kilopascal (kPa) is the SI pressure unit equal to 1,000 pascals — a thousand newtons of force spread over one square metre. Everyday Canadian pressures land in tidy hundreds: sea-level air in Vancouver at 101.325 kPa, passenger tires at 220 kPa, household water around 450 kPa. The unit chains cleanly through the metric system, with 100 kPa making one bar and 1,000 kPa making one megapascal, so a single reading serves tires, weather, and plumbing alike.
Where it is used: Kilopascals anchor Transport Canada tire-sticker requirements, Environment Canada weather reports, SI engineering datasheets, and bilingual product labels from coast to coast to coast.
Origin: The prefix kilo attached to the pascal after the unit became the SI pressure standard in 1971 — the same decade Canada began its official shift to metric — filling the gap between raw pascals and industrial megapascals.
PSI (psi)
PSI (pound-force per square inch) is the imperial pressure unit: one pound of force pressing on one square inch. It equals 6,894.76 pascals, or 6.89476 kPa. Even though Canada is officially metric, the scale remains everywhere in daily life thanks to cross-border trade — household water spans 40-80 PSI, car tires 32-36 PSI, and shop compressors 90-175 PSI — which keeps PSI entrenched on imported gauges, appliances, and tradespeople's tools from St. John's to Victoria.
Where it is used: PSI is the working unit for many Canadian trades and consumers: plumbing inspections, US-spec appliance ratings, gas-station air pumps, and compressed-air equipment.
Origin: Rooted in 19th-century British engineering that paired the pound-force with the square inch, the unit crossed into North American practice and survives across Canada and the United States long after Britain metricated.
Kilopascal to PSI Conversion Table
Select a value to use it in the calculator.
| Kilopascal (kPa) | PSI (psi) |
|---|---|
| 0.1450377377 psi | |
| 0.2900754755 psi | |
| 0.7251886887 psi | |
| 1.4503773773 psi | |
| 2.9007547546 psi | |
| 7.2518868865 psi | |
| 10.1526416411 psi | |
| 14.503773773 psi | |
| 14.6959487755 psi | |
| 21.7556606595 psi | |
| 29.007547546 psi | |
| 31.9083023006 psi | |
| 36.2594344326 psi | |
| 43.5113213191 psi | |
| 50.7632082056 psi | |
| 58.0150950921 psi | |
| 65.2669819786 psi | |
| 72.5188688651 psi | |
| 87.0226426381 psi | |
| 101.5264164111 psi |
PSI to Kilopascal Conversion Table
| PSI (psi) | Kilopascal (kPa) |
|---|---|
| 1 psi | 6.8947572932 kPa |
| 5 psi | 34.4737864658 kPa |
| 10 psi | 68.9475729317 kPa |
| 14.5 psi | 99.9739807509 kPa |
| 20 psi | 137.8951458634 kPa |
| 25 psi | 172.3689323292 kPa |
| 30 psi | 206.8427187951 kPa |
| 32 psi | 220.6322333814 kPa |
| 35 psi | 241.3165052609 kPa |
| 36 psi | 248.2112625541 kPa |
| 40 psi | 275.7902917267 kPa |
| 50 psi | 344.7378646584 kPa |
| 60 psi | 413.6854375901 kPa |
| 80 psi | 551.5805834535 kPa |
Kilopascal to PSI in Everyday Objects
Common real-world examples that make Kilopascal and PSI easy to picture at a glance.
| Kilopascal (kPa) | PSI (psi) | |
|---|---|---|
| A municipal water supply in Toronto or Calgary | 450 kPa | 65.2669819786 psi |
| A bilingual door-jamb tire sticker | 220 kPa | 31.9083023006 psi |
| A vineyard drip-irrigation line in the Okanagan | 300 kPa | 43.5113213191 psi |
| A workshop air line in an Edmonton garage | 600 kPa | 87.0226426381 psi |
| A cottage or rural well reverse-osmosis feed | 400 kPa | 58.0150950921 psi |
| A downtown condo fire-sprinkler riser | 700 kPa | 101.5264164111 psi |
When You Need Kilopascal to PSI Conversions
Home Water Pressure Tests
A test gauge screwed onto an outdoor hose bib reads 450 kPa; enter it to get 65.3 PSI before comparing against the 80 PSI ceiling in Canadian plumbing codes.
Cross-Border Appliance Installs
An American icemaker picked up in Buffalo or ordered from a US retailer specifies a 30-120 PSI supply; your metric test shows 400 kPa, which converts to 58.0 PSI — safely mid-range.
Irrigation in Wine Country
Okanagan and Niagara drip systems quote 70-350 kPa operating bands, while installation crews and imported parts think in PSI — 300 kPa becomes 43.5 PSI at the regulator.
Pneumatic Filter Servicing
A filter-change indicator trips at 70 kPa of pressure drop, equal to 10.2 PSI, and the shop's US-made maintenance log records everything in PSI.
Related Pressure Conversions
How to Use
-
1
Enter kPa Value
Type the kilopascal reading — typical entries include a bilingual door-jamb tire sticker (220-250 kPa), home water pressure (400-500 kPa), and Vancouver sea-level barometric readings (about 101 kPa)
-
2
View PSI Result
The PSI equivalent appears instantly. For example, 450 kPa converts to about 65.3 PSI — useful when comparing a Canadian reading against US equipment specs
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3
Copy or Swap
Copy the result or click Swap to convert PSI back to kilopascals
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4
Check Against Code Limits
Compare with Canadian plumbing norms: the National Plumbing Code and most municipal codes cap residential water at 80 PSI (551.6 kPa), so fit a pressure-reducing valve if your reading is higher
Why Use Be Converter?
Instant Conversion
Get precise kPa to PSI results in real time as you type — perfect for checking tire pressures before a Highway 401 commute or a Trans-Canada road trip
High Accuracy
Uses the exact international standard: 1 kPa = 1,000 Pa and 1 PSI = 6,894.76 Pa, accurate to 6 decimal places — reliable enough for inspection reports and engineering work
Conversion Table
Quick reference with common values like 100 kPa (14.5 PSI), 220 kPa (31.9 PSI), and 700 kPa (101.5 PSI)
Bidirectional
Easily swap between kilopascals and PSI with one click — handy when a US manual lists PSI but your Canadian gauge reads kPa
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Frequently Asked Questions
How many PSI is 1 kPa?
What is 220 kPa in PSI?
What is the difference between kPa and PSI?
How do I convert water pressure from kPa to PSI?
How many kPa are in 1 PSI?
How many PSI is 300 kPa?
What is normal house water pressure?
How do I estimate kPa to PSI without a calculator?
About This kPa to PSI Converter
Our free online kPa to PSI converter bridges the two pressure worlds Canadians live between: official metric kilopascals on labels and the imperial PSI stamped on tools and appliances sold across North America. Whether you are checking winter tire pressures in Winnipeg, testing household water in a Toronto semi, installing a US-made appliance picked up on a cross-border shopping run, or matching a PSI gauge to a bilingual Canadian spec sheet, this tool delivers the exact equivalent. Canada went metric in the 1970s, so Transport Canada stickers, weather reports, and engineering documents read in kPa, while American plumbing codes, appliances, and shop compressors still speak PSI. Our converter applies the exact factor: 1 kPa equals 0.145038 PSI.
Expert Tips for Kilopascal to PSI Conversion
Water-pressure anchors: 300 kPa = 43.5 PSI (garden drip lines), 450 kPa = 65.3 PSI (typical municipal supply in cities like Ottawa or Calgary), 550 kPa = 79.8 PSI (right at the 80 PSI ceiling in most Canadian codes)
Cold-weather check: tire pressure falls roughly 7 kPa for every 5°C drop, so a 220 kPa (31.9 PSI) fall reading can sink toward 200 kPa during a -30°C cold snap in Winnipeg — measure after the car sits overnight
Boiler and heating loops: a 150 kPa fill is 21.8 PSI, while 200 kPa is 29.0 PSI; most residential relief valves open near 210 kPa (30.5 PSI)
For field estimates divide kPa by 7 and add 2 percent; for anything going on paper — permits, inspection reports, warranty claims — use the exact 0.145038 factor
Many imported pneumatic gauges show pressure drop in kPa — a 70 kPa filter drop (10.2 PSI) is the usual signal to replace the element before a long Canadian winter puts extra load on the compressor
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