square hectometer | 1 hm2 | 2 hm2 | 3 hm2 | 4 hm2 | 5 hm2 | 6 hm2 | 7 hm2 | 8 hm2 | 9 hm2 | 10 hm2 | 11 hm2 | 12 hm2 | 13 hm2 | 14 hm2 | 15 hm2 | 16 hm2 | 17 hm2 | 18 hm2 | 19 hm2 | 20 hm2 | 21 hm2 | 22 hm2 | 23 hm2 | 24 hm2 | 25 hm2 | 26 hm2 | 27 hm2 | 28 hm2 | 29 hm2 | 30 hm2 | 31 hm2 | 32 hm2 | 33 hm2 | 34 hm2 | 35 hm2 | 36 hm2 | 37 hm2 | 38 hm2 | 39 hm2 | 40 hm2 | 41 hm2 | 42 hm2 | 43 hm2 | 44 hm2 | 45 hm2 | 46 hm2 | 47 hm2 | 48 hm2 | 49 hm2 | 50 hm2 | 51 hm2 | 52 hm2 | 53 hm2 | 54 hm2 | 55 hm2 | 56 hm2 | 57 hm2 | 58 hm2 | 59 hm2 | 60 hm2 | 61 hm2 | 62 hm2 | 63 hm2 | 64 hm2 | 65 hm2 | 66 hm2 | 67 hm2 | 68 hm2 | 69 hm2 | 70 hm2 | 71 hm2 | 72 hm2 | 73 hm2 | 74 hm2 | 75 hm2 | 76 hm2 | 77 hm2 | 78 hm2 | 79 hm2 | 80 hm2 | 81 hm2 | 82 hm2 | 83 hm2 | 84 hm2 | 85 hm2 | 86 hm2 | 87 hm2 | 88 hm2 | 89 hm2 | 90 hm2 | 91 hm2 | 92 hm2 | 93 hm2 | 94 hm2 | 95 hm2 | 96 hm2 | 97 hm2 | 98 hm2 | 99 hm2 | 100 hm2 |
attobarn | 1.0 × 1050 ab | 2.0 × 1050 ab | 3.0 × 1050 ab | 4.0 × 1050 ab | 5.0 × 1050 ab | 6.0 × 1050 ab | 7.0 × 1050 ab | 8.0 × 1050 ab | 9.0 × 1050 ab | 1.0 × 1051 ab | 1.1 × 1051 ab | 1.2 × 1051 ab | 1.3 × 1051 ab | 1.4 × 1051 ab | 1.5 × 1051 ab | 1.6 × 1051 ab | 1.7 × 1051 ab | 1.8 × 1051 ab | 1.9 × 1051 ab | 2.0 × 1051 ab | 2.1 × 1051 ab | 2.2 × 1051 ab | 2.3 × 1051 ab | 2.4 × 1051 ab | 2.5 × 1051 ab | 2.6 × 1051 ab | 2.7 × 1051 ab | 2.8 × 1051 ab | 2.9 × 1051 ab | 3.0 × 1051 ab | 3.1 × 1051 ab | 3.2 × 1051 ab | 3.3 × 1051 ab | 3.4 × 1051 ab | 3.5 × 1051 ab | 3.6 × 1051 ab | 3.7 × 1051 ab | 3.8 × 1051 ab | 3.9 × 1051 ab | 4.0 × 1051 ab | 4.1 × 1051 ab | 4.2 × 1051 ab | 4.3 × 1051 ab | 4.4 × 1051 ab | 4.5 × 1051 ab | 4.6 × 1051 ab | 4.7 × 1051 ab | 4.8 × 1051 ab | 4.9 × 1051 ab | 5.0 × 1051 ab | 5.1 × 1051 ab | 5.2 × 1051 ab | 5.3 × 1051 ab | 5.4 × 1051 ab | 5.5 × 1051 ab | 5.6 × 1051 ab | 5.7 × 1051 ab | 5.8 × 1051 ab | 5.9 × 1051 ab | 6.0 × 1051 ab | 6.1 × 1051 ab | 6.2 × 1051 ab | 6.3 × 1051 ab | 6.4 × 1051 ab | 6.5 × 1051 ab | 6.6 × 1051 ab | 6.7 × 1051 ab | 6.8 × 1051 ab | 6.9 × 1051 ab | 7.0 × 1051 ab | 7.1 × 1051 ab | 7.2 × 1051 ab | 7.3 × 1051 ab | 7.4 × 1051 ab | 7.5 × 1051 ab | 7.6 × 1051 ab | 7.7 × 1051 ab | 7.8 × 1051 ab | 7.9 × 1051 ab | 8.0 × 1051 ab | 8.1 × 1051 ab | 8.2 × 1051 ab | 8.3 × 1051 ab | 8.4 × 1051 ab | 8.5 × 1051 ab | 8.6 × 1051 ab | 8.7 × 1051 ab | 8.8 × 1051 ab | 8.9 × 1051 ab | 9.0 × 1051 ab | 9.1 × 1051 ab | 9.2 × 1051 ab | 9.3 × 1051 ab | 9.4 × 1051 ab | 9.5 × 1051 ab | 9.6 × 1051 ab | 9.7 × 1051 ab | 9.8 × 1051 ab | 9.9 × 1051 ab | 1.0 × 1052 ab |
Square hectometre (International spelling as used by the International Bureau of Weights and Measures) or Square hectometer (American spelling) or hectare, symbol hm2, is the unit of area or surface area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square hectometer | hm2 | ≡ 1 hm × 1 hm ≡ 102 m × 102 m | = 104 m2 | Metric system SI |
square hectometers | attobarns | square hectometers | attobarns |
---|---|---|---|
1 | = 1.0E+50 | 6 | = 6.0E+50 |
2 | = 2.0E+50 | 7 | = 7.0E+50 |
3 | = 3.0E+50 | 8 | = 8.0E+50 |
4 | = 4.0E+50 | 9 | = 9.0E+50 |
5 | = 5.0E+50 | 10 | = 1.0E+51 |
A attobarn (symbol: ab) is a unit of area equal to 10−46 m2.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attobarn | ab | ≡ 10−46 m2 | ≡ 10−46 m2 | Nuclear Physics |
attobarns | square hectometers | attobarns | square hectometers |
---|---|---|---|
1 | = 1.0E-50 | 6 | = 6.0E-50 |
2 | = 2.0E-50 | 7 | = 7.0E-50 |
3 | = 3.0E-50 | 8 | = 8.0E-50 |
4 | = 4.0E-50 | 9 | = 9.0E-50 |
5 | = 5.0E-50 | 10 | = 1.0E-49 |
square hectometers | attobarns |
---|---|
1 | = 1.0 × 1050 |
1.0 × 10-50 | = 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 …) |