kPa to PSI Converter
Quick answer: To convert kPa to PSI, multiply by 0.1450377. For example, 10 kPa is 1.450377 psi. One kilopascal equals 0.1450377 psi.
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Use the kPa to PSI Converter
kPa to PSI formula and what each symbol means
psi = kPa × 0.1450377
| Symbol | Meaning |
|---|---|
| kPa | Kilopascal |
| psi | Pound per square inch |
kPa to PSI examples
1 kPa
1 kPa × 0.1450377 = 0.1450377 psi.
10 kPa
10 kPa × 0.1450377 = 1.450377 psi.
100 kPa
100 kPa × 0.1450377 = 14.50377 psi.
kPa compared with PSI
One psi is 6.895 times as large as one kPa, so your number gets smaller when you convert kPa to PSI and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About kPa and PSI
Kilopascal (kPa): 1,000 pascals. Pound per square inch (psi): One pound-force per square inch, about 6,894.757 pascals.
Where kPa to PSI conversions are used
Weather maps use hectopascals or millibars, and altitude and diving use bar or atmospheres. Hydraulics, boilers and pneumatic tools list their limits in bar, psi or MPa.
How to calculate kPa to PSI step by step
- Enter the value in kPa (the starting unit).
- Multiply by 0.1450377, because 1 kPa = 0.1450377 psi.
- The product is the value in psi. To go back, divide by 0.1450377 or multiply by 6.894757.
Popular pressure conversions
How to read your kPa to PSI result
Quick estimate: multiply by about 0.145 to get PSI from kPa; this is within 0.1% of the exact factor. One standard atmosphere is exactly 101,325 Pa, and one bar is exactly 100,000 Pa.
| KPA | PSI |
|---|---|
| 1 | 0.1450377 |
| 2 | 0.2900755 |
| 5 | 0.7251887 |
| 10 | 1.450377 |
| 20 | 2.900755 |
| 50 | 7.251887 |
| 100 | 14.50377 |
| 1,000 | 145.0377 |
PSI to kPa: quick table
| PSI | KPA |
|---|---|
| 1 | 6.894757 |
| 5 | 34.47379 |
| 10 | 68.94757 |
| 25 | 172.3689 |
| 50 | 344.7379 |
| 100 | 689.4757 |
| 250 | 1,723.689 |
| 500 | 3,447.379 |
Common mistakes when calculating kPa to PSI
- Using 1 bar = 1 atm: they differ by about 1.3%.
- Dividing when you should multiply: from kPa to psi multiply by 0.1450377; from psi to kPa divide by 0.1450377.
kPa to PSI FAQ
How many psi are in 1 kPa?
1 kPa equals 0.1450377 psi.
How many kPa are in 1 psi?
1 psi equals 6.894757 kPa.
Is 1 kPa = 0.1450377 psi an exact conversion?
The factor is shown rounded to 7 significant figures (0.1450377). The calculator above uses more digits.
What is a pound per square inch (psi)?
One pound-force per square inch, about 6,894.757 pascals.
How can I estimate kPa to PSI in my head?
Quick estimate: multiply by about 0.145 to get PSI from kPa; this is within 0.1% of the exact factor.
What is 500 kPa in PSI?
500 kPa = 72.51887 psi (since 500 × 0.1450377).
What is 15 kPa in PSI?
15 kPa = 2.175566 psi (since 15 × 0.1450377).
What is 75 kPa in PSI?
75 kPa = 10.87783 psi (since 75 × 0.1450377).
How many decimals should I keep when converting kPa to psi?
Match the precision of your original measurement. For example, 1.450377 psi rounds to 1.45 psi at 3 significant figures; keep more digits only for engineering or scientific work.
More in Pressure converters
- mmHg to kPa Converter
- kPa to Bar Converter
- mmHg to Pascals Converter
- kPa to Atmospheres Converter
- mmHg to PSI Converter
- Bar to PSI Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI derived units