picobarn | 1 pb | 2 pb | 3 pb | 4 pb | 5 pb | 6 pb | 7 pb | 8 pb | 9 pb | 10 pb | 11 pb | 12 pb | 13 pb | 14 pb | 15 pb | 16 pb | 17 pb | 18 pb | 19 pb | 20 pb | 21 pb | 22 pb | 23 pb | 24 pb | 25 pb | 26 pb | 27 pb | 28 pb | 29 pb | 30 pb | 31 pb | 32 pb | 33 pb | 34 pb | 35 pb | 36 pb | 37 pb | 38 pb | 39 pb | 40 pb | 41 pb | 42 pb | 43 pb | 44 pb | 45 pb | 46 pb | 47 pb | 48 pb | 49 pb | 50 pb | 51 pb | 52 pb | 53 pb | 54 pb | 55 pb | 56 pb | 57 pb | 58 pb | 59 pb | 60 pb | 61 pb | 62 pb | 63 pb | 64 pb | 65 pb | 66 pb | 67 pb | 68 pb | 69 pb | 70 pb | 71 pb | 72 pb | 73 pb | 74 pb | 75 pb | 76 pb | 77 pb | 78 pb | 79 pb | 80 pb | 81 pb | 82 pb | 83 pb | 84 pb | 85 pb | 86 pb | 87 pb | 88 pb | 89 pb | 90 pb | 91 pb | 92 pb | 93 pb | 94 pb | 95 pb | 96 pb | 97 pb | 98 pb | 99 pb | 100 pb |
hide | 2.0 × 10-46 hide | 4.0 × 10-46 hide | 6.0 × 10-46 hide | 8.0 × 10-46 hide | 1.0 × 10-45 hide | 1.2 × 10-45 hide | 1.4 × 10-45 hide | 1.6 × 10-45 hide | 1.8 × 10-45 hide | 2.0 × 10-45 hide | 2.2 × 10-45 hide | 2.4 × 10-45 hide | 2.6 × 10-45 hide | 2.8 × 10-45 hide | 3.0 × 10-45 hide | 3.2 × 10-45 hide | 3.4 × 10-45 hide | 3.6 × 10-45 hide | 3.8 × 10-45 hide | 4.0 × 10-45 hide | 4.2 × 10-45 hide | 4.4 × 10-45 hide | 4.6 × 10-45 hide | 4.8 × 10-45 hide | 5.0 × 10-45 hide | 5.2 × 10-45 hide | 5.4 × 10-45 hide | 5.6 × 10-45 hide | 5.8 × 10-45 hide | 6.0 × 10-45 hide | 6.2 × 10-45 hide | 6.4 × 10-45 hide | 6.6 × 10-45 hide | 6.8 × 10-45 hide | 7.0 × 10-45 hide | 7.2 × 10-45 hide | 7.4 × 10-45 hide | 7.6 × 10-45 hide | 7.8 × 10-45 hide | 8.0 × 10-45 hide | 8.2 × 10-45 hide | 8.4 × 10-45 hide | 8.6 × 10-45 hide | 8.8 × 10-45 hide | 9.0 × 10-45 hide | 9.2 × 10-45 hide | 9.4 × 10-45 hide | 9.6 × 10-45 hide | 9.8 × 10-45 hide | 1.0 × 10-44 hide | 1.02 × 10-44 hide | 1.04 × 10-44 hide | 1.06 × 10-44 hide | 1.08 × 10-44 hide | 1.1 × 10-44 hide | 1.12 × 10-44 hide | 1.14 × 10-44 hide | 1.16 × 10-44 hide | 1.18 × 10-44 hide | 1.2 × 10-44 hide | 1.22 × 10-44 hide | 1.24 × 10-44 hide | 1.26 × 10-44 hide | 1.28 × 10-44 hide | 1.3 × 10-44 hide | 1.32 × 10-44 hide | 1.34 × 10-44 hide | 1.36 × 10-44 hide | 1.38 × 10-44 hide | 1.4 × 10-44 hide | 1.42 × 10-44 hide | 1.44 × 10-44 hide | 1.46 × 10-44 hide | 1.48 × 10-44 hide | 1.5 × 10-44 hide | 1.52 × 10-44 hide | 1.54 × 10-44 hide | 1.56 × 10-44 hide | 1.58 × 10-44 hide | 1.6 × 10-44 hide | 1.62 × 10-44 hide | 1.64 × 10-44 hide | 1.66 × 10-44 hide | 1.68 × 10-44 hide | 1.7 × 10-44 hide | 1.72 × 10-44 hide | 1.74 × 10-44 hide | 1.76 × 10-44 hide | 1.78 × 10-44 hide | 1.8 × 10-44 hide | 1.82 × 10-44 hide | 1.84 × 10-44 hide | 1.86 × 10-44 hide | 1.88 × 10-44 hide | 1.9 × 10-44 hide | 1.92 × 10-44 hide | 1.94 × 10-44 hide | 1.96 × 10-44 hide | 1.98 × 10-44 hide | 2.0 × 10-44 hide |
A picobarn (symbol: pb) is a unit of area equal to 10−40 m2.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
picobarn | pb | ≡ 10−40 m2 | ≡ 10−40 m2 | Nuclear Physics |
picobarns | hides | picobarns | hides |
---|---|---|---|
1 | = 2.0E-46 | 6 | = 1.2E-45 |
2 | = 4.0E-46 | 7 | = 1.4E-45 |
3 | = 6.0E-46 | 8 | = 1.6E-45 |
4 | = 8.0E-46 | 9 | = 1.8E-45 |
5 | = 1.0E-45 | 10 | = 2.0E-45 |
The hide was an English unit of land measurement originally intended to represent the amount of land sufficient to support a household.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hide | ≈ 120 ac (variable) | ≈ 5×105 m2 | Other |
hides | picobarns | hides | picobarns |
---|---|---|---|
1 | = 5.0E+45 | 6 | = 3.0E+46 |
2 | = 1.0E+46 | 7 | = 3.5E+46 |
3 | = 1.5E+46 | 8 | = 4.0E+46 |
4 | = 2.0E+46 | 9 | = 4.5E+46 |
5 | = 2.5E+46 | 10 | = 5.0E+46 |
picobarns | hides |
---|---|
1 | = 2.0 × 10-46 |
5.0 × 1045 | = 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 …) |