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    PSI to kPa

    Convert PSI to kPa

    "PSI to kPa" Calculator

    Convert
    PSI to kPa

    How to convert pounds per square inch to kilopascals

    Worked example: 35 psi ≈ 241.32 kPa

    psikPa02040010020030035 psi241.32 kPa

    35 psi × 4.4482216152605 ÷ 0.64516 ≈ 241.32 kPa

    0.64516 = 1,000 Pa in a kilopascal × 0.00064516 m² in a square inch; 4.4482216152605 N in a pound-force

    Rule: kilopascals = pounds per square inch × 4.4482216152605 ÷ 0.64516 ≈ pounds per square inch × 6.89476 — 1 psi = 1 lbf/in².
    Most asked values
    Pounds per square inchKilopascals
    1 psi6.89 kPa
    2.5 psi17.24 kPa
    3.5 psi24.13 kPa
    4 psi27.58 kPa
    5 psi34.47 kPa
    10 psi68.95 kPa
    14.7 psi101.35 kPa
    15 psi103.42 kPa
    20 psi137.9 kPa
    30 psi206.84 kPa
    32 psi220.63 kPa
    33 psi227.53 kPa
    35 psi241.32 kPa
    36 psi248.21 kPa
    40 psi275.79 kPa
    50 psi344.74 kPa
    60 psi413.69 kPa
    90 psi620.53 kPa
    100 psi689.48 kPa
    145 psi999.74 kPa

    See Also

    Last Results

    FAQ

    How many kPa is 1 psi?

    1 psi ≈ 6.89476 kPa, and 1 kPa ≈ 0.145038 psi. Exactly, kPa = psi × 4.4482216152605 ÷ 0.64516. The factor never ends as a decimal, so almost every answer in kPa is rounded and shown after ≈; an answer that comes out exact is shown with =.

    Where do 4.4482216152605 and 0.64516 come from?

    A psi is one pound-force (4.4482216152605 N exactly) on one square inch (0.00064516 m² exactly), and a kilopascal is exactly 1,000 Pa. 0.64516 is 1,000 Pa in a kilopascal times 0.00064516 m², so kPa = psi × 4.4482216152605 ÷ 0.64516.

    psi on the tire placard, kPa on the gauge: what should I set?

    Convert the placard value and set the gauge to the answer: 35 psi is about 241 kPa. Both are gauge pressure (counted from the surrounding air), so the factor needs no correction.

    Gauge or absolute pressure: does it matter?

    No, as long as both sides are of the same kind. Gauge pressure (psig) counts from the surrounding air, absolute pressure (psia) from vacuum, and the factor is the same for both. Tire and compressor gauges show gauge pressure.