| square gigameter | 1 Gm2 | 2 Gm2 | 3 Gm2 | 4 Gm2 | 5 Gm2 | 6 Gm2 | 7 Gm2 | 8 Gm2 | 9 Gm2 | 10 Gm2 | 11 Gm2 | 12 Gm2 | 13 Gm2 | 14 Gm2 | 15 Gm2 | 16 Gm2 | 17 Gm2 | 18 Gm2 | 19 Gm2 | 20 Gm2 | 21 Gm2 | 22 Gm2 | 23 Gm2 | 24 Gm2 | 25 Gm2 | 26 Gm2 | 27 Gm2 | 28 Gm2 | 29 Gm2 | 30 Gm2 | 31 Gm2 | 32 Gm2 | 33 Gm2 | 34 Gm2 | 35 Gm2 | 36 Gm2 | 37 Gm2 | 38 Gm2 | 39 Gm2 | 40 Gm2 | 41 Gm2 | 42 Gm2 | 43 Gm2 | 44 Gm2 | 45 Gm2 | 46 Gm2 | 47 Gm2 | 48 Gm2 | 49 Gm2 | 50 Gm2 | 51 Gm2 | 52 Gm2 | 53 Gm2 | 54 Gm2 | 55 Gm2 | 56 Gm2 | 57 Gm2 | 58 Gm2 | 59 Gm2 | 60 Gm2 | 61 Gm2 | 62 Gm2 | 63 Gm2 | 64 Gm2 | 65 Gm2 | 66 Gm2 | 67 Gm2 | 68 Gm2 | 69 Gm2 | 70 Gm2 | 71 Gm2 | 72 Gm2 | 73 Gm2 | 74 Gm2 | 75 Gm2 | 76 Gm2 | 77 Gm2 | 78 Gm2 | 79 Gm2 | 80 Gm2 | 81 Gm2 | 82 Gm2 | 83 Gm2 | 84 Gm2 | 85 Gm2 | 86 Gm2 | 87 Gm2 | 88 Gm2 | 89 Gm2 | 90 Gm2 | 91 Gm2 | 92 Gm2 | 93 Gm2 | 94 Gm2 | 95 Gm2 | 96 Gm2 | 97 Gm2 | 98 Gm2 | 99 Gm2 | 100 Gm2 |
| barn | 1.0 × 1046 b | 2.0 × 1046 b | 3.0 × 1046 b | 4.0 × 1046 b | 5.0 × 1046 b | 6.0 × 1046 b | 7.0 × 1046 b | 8.0 × 1046 b | 9.0 × 1046 b | 1.0 × 1047 b | 1.1 × 1047 b | 1.2 × 1047 b | 1.3 × 1047 b | 1.4 × 1047 b | 1.5 × 1047 b | 1.6 × 1047 b | 1.7 × 1047 b | 1.8 × 1047 b | 1.9 × 1047 b | 2.0 × 1047 b | 2.1 × 1047 b | 2.2 × 1047 b | 2.3 × 1047 b | 2.4 × 1047 b | 2.5 × 1047 b | 2.6 × 1047 b | 2.7 × 1047 b | 2.8 × 1047 b | 2.9 × 1047 b | 3.0 × 1047 b | 3.1 × 1047 b | 3.2 × 1047 b | 3.3 × 1047 b | 3.4 × 1047 b | 3.5 × 1047 b | 3.6 × 1047 b | 3.7 × 1047 b | 3.8 × 1047 b | 3.9 × 1047 b | 4.0 × 1047 b | 4.1 × 1047 b | 4.2 × 1047 b | 4.3 × 1047 b | 4.4 × 1047 b | 4.5 × 1047 b | 4.6 × 1047 b | 4.7 × 1047 b | 4.8 × 1047 b | 4.9 × 1047 b | 5.0 × 1047 b | 5.1 × 1047 b | 5.2 × 1047 b | 5.3 × 1047 b | 5.4 × 1047 b | 5.5 × 1047 b | 5.6 × 1047 b | 5.7 × 1047 b | 5.8 × 1047 b | 5.9 × 1047 b | 6.0 × 1047 b | 6.1 × 1047 b | 6.2 × 1047 b | 6.3 × 1047 b | 6.4 × 1047 b | 6.5 × 1047 b | 6.6 × 1047 b | 6.7 × 1047 b | 6.8 × 1047 b | 6.9 × 1047 b | 7.0 × 1047 b | 7.1 × 1047 b | 7.2 × 1047 b | 7.3 × 1047 b | 7.4 × 1047 b | 7.5 × 1047 b | 7.6 × 1047 b | 7.7 × 1047 b | 7.8 × 1047 b | 7.9 × 1047 b | 8.0 × 1047 b | 8.1 × 1047 b | 8.2 × 1047 b | 8.3 × 1047 b | 8.4 × 1047 b | 8.5 × 1047 b | 8.6 × 1047 b | 8.7 × 1047 b | 8.8 × 1047 b | 8.9 × 1047 b | 9.0 × 1047 b | 9.1 × 1047 b | 9.2 × 1047 b | 9.3 × 1047 b | 9.4 × 1047 b | 9.5 × 1047 b | 9.6 × 1047 b | 9.7 × 1047 b | 9.8 × 1047 b | 9.9 × 1047 b | 1.0 × 1048 b |
Square gigametre or Square gigameter is a metric unit of area, symbol Gm2, is a multiple of the of SI prefixes (giga) used with the metre.
| 1 square gigameters = 1.0E+46 barns | 6 square gigameters = 6.0E+46 barns |
| 2 square gigameters = 2.0E+46 barns | 7 square gigameters = 7.0E+46 barns |
| 3 square gigameters = 3.0E+46 barns | 8 square gigameters = 8.0E+46 barns |
| 4 square gigameters = 4.0E+46 barns | 9 square gigameters = 9.0E+46 barns |
| 5 square gigameters = 5.0E+46 barns | 10 square gigameters = 1.0E+47 barns |
A barn (symbol: b) is a unit of area equal to 10−28 m2 (100 fm2). Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is also used in all fields of high-energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles.
| 1 barns = 1.0E-46 square gigameters | 6 barns = 6.0E-46 square gigameters |
| 2 barns = 2.0E-46 square gigameters | 7 barns = 7.0E-46 square gigameters |
| 3 barns = 3.0E-46 square gigameters | 8 barns = 8.0E-46 square gigameters |
| 4 barns = 4.0E-46 square gigameters | 9 barns = 9.0E-46 square gigameters |
| 5 barns = 5.0E-46 square gigameters | 10 barns = 1.0E-45 square gigameters |
| 1 square gigameters = 1.0 × 1046 barns |
| 1 barns = 1.0 × 10-46 square gigameters |