pound per (square inch) | 1 lb/in2 | 2 lb/in2 | 3 lb/in2 | 4 lb/in2 | 5 lb/in2 | 6 lb/in2 | 7 lb/in2 | 8 lb/in2 | 9 lb/in2 | 10 lb/in2 | 11 lb/in2 | 12 lb/in2 | 13 lb/in2 | 14 lb/in2 | 15 lb/in2 | 16 lb/in2 | 17 lb/in2 | 18 lb/in2 | 19 lb/in2 | 20 lb/in2 | 21 lb/in2 | 22 lb/in2 | 23 lb/in2 | 24 lb/in2 | 25 lb/in2 | 26 lb/in2 | 27 lb/in2 | 28 lb/in2 | 29 lb/in2 | 30 lb/in2 | 31 lb/in2 | 32 lb/in2 | 33 lb/in2 | 34 lb/in2 | 35 lb/in2 | 36 lb/in2 | 37 lb/in2 | 38 lb/in2 | 39 lb/in2 | 40 lb/in2 | 41 lb/in2 | 42 lb/in2 | 43 lb/in2 | 44 lb/in2 | 45 lb/in2 | 46 lb/in2 | 47 lb/in2 | 48 lb/in2 | 49 lb/in2 | 50 lb/in2 | 51 lb/in2 | 52 lb/in2 | 53 lb/in2 | 54 lb/in2 | 55 lb/in2 | 56 lb/in2 | 57 lb/in2 | 58 lb/in2 | 59 lb/in2 | 60 lb/in2 | 61 lb/in2 | 62 lb/in2 | 63 lb/in2 | 64 lb/in2 | 65 lb/in2 | 66 lb/in2 | 67 lb/in2 | 68 lb/in2 | 69 lb/in2 | 70 lb/in2 | 71 lb/in2 | 72 lb/in2 | 73 lb/in2 | 74 lb/in2 | 75 lb/in2 | 76 lb/in2 | 77 lb/in2 | 78 lb/in2 | 79 lb/in2 | 80 lb/in2 | 81 lb/in2 | 82 lb/in2 | 83 lb/in2 | 84 lb/in2 | 85 lb/in2 | 86 lb/in2 | 87 lb/in2 | 88 lb/in2 | 89 lb/in2 | 90 lb/in2 | 91 lb/in2 | 92 lb/in2 | 93 lb/in2 | 94 lb/in2 | 95 lb/in2 | 96 lb/in2 | 97 lb/in2 | 98 lb/in2 | 99 lb/in2 | 100 lb/in2 |
atmosphere | 0.0680460 atm | 0.1360919 atm | 0.2041379 atm | 0.2721839 atm | 0.3402298 atm | 0.4082758 atm | 0.4763217 atm | 0.5443677 atm | 0.6124137 atm | 0.6804596 atm | 0.7485056 atm | 0.8165516 atm | 0.8845975 atm | 0.9526435 atm | 1.0206895 atm | 1.0887354 atm | 1.1567814 atm | 1.2248274 atm | 1.2928733 atm | 1.3609193 atm | 1.4289652 atm | 1.4970112 atm | 1.5650572 atm | 1.6331031 atm | 1.7011491 atm | 1.7691951 atm | 1.8372410 atm | 1.9052870 atm | 1.9733330 atm | 2.0413789 atm | 2.1094249 atm | 2.1774708 atm | 2.2455168 atm | 2.3135628 atm | 2.3816087 atm | 2.4496547 atm | 2.5177007 atm | 2.5857466 atm | 2.6537926 atm | 2.7218386 atm | 2.7898845 atm | 2.8579305 atm | 2.9259764 atm | 2.9940224 atm | 3.0620684 atm | 3.1301143 atm | 3.1981603 atm | 3.2662063 atm | 3.3342522 atm | 3.4022982 atm | 3.4703442 atm | 3.5383901 atm | 3.6064361 atm | 3.6744821 atm | 3.7425280 atm | 3.8105740 atm | 3.8786199 atm | 3.9466659 atm | 4.0147119 atm | 4.0827578 atm | 4.1508038 atm | 4.2188498 atm | 4.2868957 atm | 4.3549417 atm | 4.4229877 atm | 4.4910336 atm | 4.5590796 atm | 4.6271255 atm | 4.6951715 atm | 4.7632175 atm | 4.8312634 atm | 4.8993094 atm | 4.9673554 atm | 5.0354013 atm | 5.1034473 atm | 5.1714933 atm | 5.2395392 atm | 5.3075852 atm | 5.3756311 atm | 5.4436771 atm | 5.5117231 atm | 5.5797690 atm | 5.6478150 atm | 5.7158610 atm | 5.7839069 atm | 5.8519529 atm | 5.9199989 atm | 5.9880448 atm | 6.0560908 atm | 6.1241368 atm | 6.1921827 atm | 6.2602287 atm | 6.3282746 atm | 6.3963206 atm | 6.4643666 atm | 6.5324125 atm | 6.6004585 atm | 6.6685045 atm | 6.7365504 atm | 6.8045964 atm |
The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
pound per (square inch) | lb/in2 | ≡ 1 pound × ɡ0 / 1 sq in | = 6 894.75729 pascals | Imperial/US |
pound per (square inch) | atmospheres | pound per (square inch) | atmospheres |
---|---|---|---|
1 | = 0.068045963909878 | 6 | = 0.40827578345927 |
2 | = 0.13609192781976 | 7 | = 0.47632174736914 |
3 | = 0.20413789172963 | 8 | = 0.54436771127902 |
4 | = 0.27218385563951 | 9 | = 0.6124136751889 |
5 | = 0.34022981954939 | 10 | = 0.68045963909878 |
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference or standard pressure.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
atmosphere | atm | ≡ 101325 Pa | Metric system SI |
atmospheres | pound per (square inch) | atmospheres | pound per (square inch) |
---|---|---|---|
1 | = 14.695948775513 | 6 | = 88.175692653081 |
2 | = 29.391897551027 | 7 | = 102.87164142859 |
3 | = 44.08784632654 | 8 | = 117.56759020411 |
4 | = 58.783795102054 | 9 | = 132.26353897962 |
5 | = 73.479743877567 | 10 | = 146.95948775513 |
pound per (square inch) | atmospheres |
---|---|
1 | = 0.0680460 |
14.6959488 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |