ScientificConverters.com Precise unit conversions for science & engineering.

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    Convert psi to Torr

    1 psi equals 51.71493257 torr.

    psi
    Swap: convert torr to psi
    Torr

    1 psi = 51.71493257 Torr

    Type in either box. Scientific notation works: 1.5e-3.

    Converting a list? Use the bulk psi to torr converter to paste a column from Excel.

    How to Convert psi to Torr

    • 1 psi = 51.71493257 Torr
    • 1 Torr = 0.0193367747 psi
    • Example: convert 15 psi to Torr: 15 psi = 15 × 51.71493257 Torr = 775.7239886 Torr

    Formula

    Torr = psi × 51.71493257151

    Derivation from SI units:

    • 1 psi = 1 lbf/in² = (0.45359237 kg × 9.80665 m/s²) ÷ (0.0254 m)² = 6894.757293168 Pa
    • 1 Torr = 101325/760 Pa = 133.3223684 Pa (1/760 of a standard atmosphere)
    • 1 psi = 6894.757293168 Pa ÷ 133.3223684211 Pa per Torr = 51.71493257151 Torr

    Both units are defined exactly, so the factor is exact. psi definition: psi; Torr definition: torr.

    Worked examples

    1. A reading of 14.7 psi converts to 760.2095088 Torr.
      14.7 psi × 51.71493257 = 760.2095088 Torr
    2. A value of 60 psi is 3102.895954 Torr.
      60 psi × 51.71493257 = 3102.895954 Torr

    psi to Torr conversion table

    psi to Torr conversion table
    psiTorr
    0.01 psi0.5171493257 Torr
    0.05 psi2.585746629 Torr
    0.1 psi5.171493257 Torr
    0.25 psi12.92873314 Torr
    0.5 psi25.85746629 Torr
    1 psi51.71493257 Torr
    2 psi103.4298651 Torr
    5 psi258.5746629 Torr
    10 psi517.1493257 Torr
    14.7 psi760.2095088 Torr
    15 psi775.7239886 Torr
    20 psi1034.298651 Torr
    25 psi1292.873314 Torr
    30 psi1551.447977 Torr
    32 psi1654.877842 Torr
    35 psi1810.02264 Torr
    40 psi2068.597303 Torr
    50 psi2585.746629 Torr
    60 psi3102.895954 Torr
    80 psi4137.194606 Torr
    100 psi5171.493257 Torr
    125 psi6464.366571 Torr
    150 psi7757.239886 Torr
    200 psi10342.98651 Torr
    500 psi25857.46629 Torr
    1000 psi51714.93257 Torr
    3000 psi155144.7977 Torr
    5000 psi258574.6629 Torr

    Where it's used

    psi are used for tyre pressure in the United States (about 30–35 psi for cars), while torr appear in vacuum technology and vacuum gauges. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.

    psi to other pressure units

    1 psi expressed in every pressure unit
    Conversion1 psi equals
    psi to pascal 6894.757293 Pa
    psi to kilopascal 6.894757293 kPa
    psi to megapascal 0.006894757293 MPa
    psi to bar 0.06894757293 bar
    psi to millibar 68.94757293 mbar
    psi to decibar 0.6894757293 dbar
    psi to torr 51.71493257 Torr
    psi to millimeter of mercury 51.7149252 mmHg
    psi to millimeter of water 703.0695796 mmH₂O
    psi to centimeter of water 70.30695796 cmH₂O
    psi to inch of water 27.67990471 inH₂O
    psi to inch of water (60 °F) 27.7075924 inH₂O (60 °F)
    psi to inch of mercury 2.036020677 inHg
    psi to atmosphere 0.06804596391 atm
    psi to barye 68947.57293 Ba

    Frequently asked questions

    How many torr are in 1 psi?

    1 psi = 51.71493257 Torr.

    How do I convert psi to torr?

    Multiply the value in psi by 51.71493257. For example, 15 psi × 51.71493257 = 775.7239886 Torr.

    Is the psi to Torr conversion exact?

    Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).

    Sources

    Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.

    Cite this page

    APA

    Scientific Converters. (2026, October 15). Convert psi to Torr. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/psi-to-torr/

    IEEE

    Scientific Converters, "Convert psi to Torr," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/psi-to-torr/