Converts psi to bar in this tab, with nothing sent anywhere.
A tyre recommendation of 32 psi is about 2.21 bar. Use the cold-pressure figure on the vehicle placard, not the tyre sidewall maximum; pressure also rises after driving, so timing matters more than extra decimal places.
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Browse all general convertersPSI and bar are the two units pressure is quoted in - PSI (pounds per square inch) in the US and in much of the tyre and plumbing world, bar in Europe and in most technical and automotive specifications. Converting PSI to bar is what you need to set a tyre, a pump or a gauge specified in one against equipment reading the other. One PSI is about 0.069 bar, so it takes roughly 14.5 PSI to make a bar. Tyre pressures are the everyday case: a car door sticker may list PSI while the garage air pump reads in bar, and getting it wrong affects handling, wear and fuel economy. Bar is convenient because one bar is very close to atmospheric pressure at sea level, which makes it an intuitive unit for anything measured relative to the air around us. Diving, espresso machines, hydraulics and HVAC all mix the two units depending on the manufacturer, so the conversion turns up far beyond tyres. Because 14.5 PSI is roughly one bar, a quick mental estimate divides PSI by about 14.5 - but for anything precise the exact factor matters. For a gauge that displays tenths of a bar, round the converted PSI value only at the final comparison.
Rounded to four decimal places. These are conversions, not recommended operating pressures. Gauge and absolute pressure retain their original reference.
| PSI | Bar |
|---|---|
| 1 | 0.0689 |
| 2 | 0.1379 |
| 3 | 0.2068 |
| 4 | 0.2758 |
| 5 | 0.3447 |
| 6 | 0.4137 |
| 7 | 0.4826 |
| 8 | 0.5516 |
| 9 | 0.6205 |
| 10 | 0.6895 |
| 11 | 0.7584 |
| 12 | 0.8274 |
| 13 | 0.8963 |
| 14 | 0.9653 |
| 15 | 1.0342 |
| 16 | 1.1032 |
| 17 | 1.1721 |
| 18 | 1.2411 |
| 19 | 1.3100 |
| 20 | 1.3790 |
| 21 | 1.4479 |
| 22 | 1.5168 |
| 23 | 1.5858 |
| 24 | 1.6547 |
| 25 | 1.7237 |
| 26 | 1.7926 |
| 27 | 1.8616 |
| 28 | 1.9305 |
| 29 | 1.9995 |
| 30 | 2.0684 |
| 31 | 2.1374 |
| 32 | 2.2063 |
| 33 | 2.2753 |
| 34 | 2.3442 |
| 35 | 2.4132 |
| 36 | 2.4821 |
| 37 | 2.5511 |
| 38 | 2.6200 |
| 39 | 2.6890 |
| 40 | 2.7579 |
| 41 | 2.8269 |
| 42 | 2.8958 |
| 43 | 2.9647 |
| 44 | 3.0337 |
| 45 | 3.1026 |
| 46 | 3.1716 |
| 47 | 3.2405 |
| 48 | 3.3095 |
| 49 | 3.3784 |
| 50 | 3.4474 |
| 51 | 3.5163 |
| 52 | 3.5853 |
| 53 | 3.6542 |
| 54 | 3.7232 |
| 55 | 3.7921 |
| 56 | 3.8611 |
| 57 | 3.9300 |
| 58 | 3.9990 |
| 59 | 4.0679 |
| 60 | 4.1369 |
| 61 | 4.2058 |
| 62 | 4.2747 |
| 63 | 4.3437 |
| 64 | 4.4126 |
| 65 | 4.4816 |
| 66 | 4.5505 |
| 67 | 4.6195 |
| 68 | 4.6884 |
| 69 | 4.7574 |
| 70 | 4.8263 |
| 71 | 4.8953 |
| 72 | 4.9642 |
| 73 | 5.0332 |
| 74 | 5.1021 |
| 75 | 5.1711 |
| 76 | 5.2400 |
| 77 | 5.3090 |
| 78 | 5.3779 |
| 79 | 5.4469 |
| 80 | 5.5158 |
| 81 | 5.5848 |
| 82 | 5.6537 |
| 83 | 5.7226 |
| 84 | 5.7916 |
| 85 | 5.8605 |
| 86 | 5.9295 |
| 87 | 5.9984 |
| 88 | 6.0674 |
| 89 | 6.1363 |
| 90 | 6.2053 |
| 91 | 6.2742 |
| 92 | 6.3432 |
| 93 | 6.4121 |
| 94 | 6.4811 |
| 95 | 6.5500 |
| 96 | 6.6190 |
| 97 | 6.6879 |
| 98 | 6.7569 |
| 99 | 6.8258 |
| 100 | 6.8948 |
| 101 | 6.9637 |
| 102 | 7.0327 |
| 103 | 7.1016 |
| 104 | 7.1705 |
| 105 | 7.2395 |
| 106 | 7.3084 |
| 107 | 7.3774 |
| 108 | 7.4463 |
| 109 | 7.5153 |
| 110 | 7.5842 |
| 111 | 7.6532 |
| 112 | 7.7221 |
| 113 | 7.7911 |
| 114 | 7.8600 |
| 115 | 7.9290 |
| 116 | 7.9979 |
| 117 | 8.0669 |
| 118 | 8.1358 |
| 119 | 8.2048 |
| 120 | 8.2737 |
| 121 | 8.3427 |
| 122 | 8.4116 |
| 123 | 8.4806 |
| 124 | 8.5495 |
| 125 | 8.6184 |
| 126 | 8.6874 |
| 127 | 8.7563 |
| 128 | 8.8253 |
| 129 | 8.8942 |
| 130 | 8.9632 |
| 131 | 9.0321 |
| 132 | 9.1011 |
| 133 | 9.1700 |
| 134 | 9.2390 |
| 135 | 9.3079 |
| 136 | 9.3769 |
| 137 | 9.4458 |
| 138 | 9.5148 |
| 139 | 9.5837 |
| 140 | 9.6527 |
| 141 | 9.7216 |
| 142 | 9.7906 |
| 143 | 9.8595 |
| 144 | 9.9285 |
| 145 | 9.9974 |
| 146 | 10.0663 |
| 147 | 10.1353 |
| 148 | 10.2042 |
| 149 | 10.2732 |
| 150 | 10.3421 |
Multiply pounds per square inch by 0.0689475729 to get bar. For example, 32 multiplied by 0.0689475729 gives 2.2063223328 bar, or 2.21 bar to two decimal places. Divide by that factor for the reverse direction. The factor used in the tool is a rounded representation; extra output digits do not make the original gauge reading more accurate.
Useful reference values are 30 PSI = 2.06843 bar, 35 PSI = 2.41317 bar, 40 PSI = 2.7579 bar, 60 PSI = 4.13685 bar, and 100 PSI = 6.89476 bar. These are unit conversions, not recommended operating pressures. Match the specification for the particular equipment.
Changing units does not change the reference point. A reading in psig converts to gauge bar; a reading in psia converts to absolute bar. To switch between gauge and absolute pressure you also need the surrounding atmospheric pressure. The calculator does not add or subtract it automatically.
Start with the value and unit on the specification, convert that number, and compare it with a gauge using the same pressure reference. Round only at the end to the resolution the gauge can show. A pump display reading tenths of a bar cannot represent every decimal shown by this converter.
About 14.5 PSI make one bar. A typical car tyre at 32 PSI is roughly 2.2 bar.
No. PSI to Bar does the arithmetic in this browser tab; the value is calculated on your device and is not sent to a server.
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