| square femtometer | 1 fm2 | 2 fm2 | 3 fm2 | 4 fm2 | 5 fm2 | 6 fm2 | 7 fm2 | 8 fm2 | 9 fm2 | 10 fm2 | 11 fm2 | 12 fm2 | 13 fm2 | 14 fm2 | 15 fm2 | 16 fm2 | 17 fm2 | 18 fm2 | 19 fm2 | 20 fm2 | 21 fm2 | 22 fm2 | 23 fm2 | 24 fm2 | 25 fm2 | 26 fm2 | 27 fm2 | 28 fm2 | 29 fm2 | 30 fm2 | 31 fm2 | 32 fm2 | 33 fm2 | 34 fm2 | 35 fm2 | 36 fm2 | 37 fm2 | 38 fm2 | 39 fm2 | 40 fm2 | 41 fm2 | 42 fm2 | 43 fm2 | 44 fm2 | 45 fm2 | 46 fm2 | 47 fm2 | 48 fm2 | 49 fm2 | 50 fm2 | 51 fm2 | 52 fm2 | 53 fm2 | 54 fm2 | 55 fm2 | 56 fm2 | 57 fm2 | 58 fm2 | 59 fm2 | 60 fm2 | 61 fm2 | 62 fm2 | 63 fm2 | 64 fm2 | 65 fm2 | 66 fm2 | 67 fm2 | 68 fm2 | 69 fm2 | 70 fm2 | 71 fm2 | 72 fm2 | 73 fm2 | 74 fm2 | 75 fm2 | 76 fm2 | 77 fm2 | 78 fm2 | 79 fm2 | 80 fm2 | 81 fm2 | 82 fm2 | 83 fm2 | 84 fm2 | 85 fm2 | 86 fm2 | 87 fm2 | 88 fm2 | 89 fm2 | 90 fm2 | 91 fm2 | 92 fm2 | 93 fm2 | 94 fm2 | 95 fm2 | 96 fm2 | 97 fm2 | 98 fm2 | 99 fm2 | 100 fm2 |
| barn | 0.01 b | 0.02 b | 0.03 b | 0.04 b | 0.05 b | 0.06 b | 0.07 b | 0.08 b | 0.09 b | 0.1 b | 0.11 b | 0.12 b | 0.13 b | 0.14 b | 0.15 b | 0.16 b | 0.17 b | 0.18 b | 0.19 b | 0.2 b | 0.21 b | 0.22 b | 0.23 b | 0.24 b | 0.25 b | 0.26 b | 0.27 b | 0.28 b | 0.29 b | 0.3 b | 0.31 b | 0.32 b | 0.33 b | 0.34 b | 0.35 b | 0.36 b | 0.37 b | 0.38 b | 0.39 b | 0.4 b | 0.41 b | 0.42 b | 0.43 b | 0.44 b | 0.45 b | 0.46 b | 0.47 b | 0.48 b | 0.49 b | 0.5 b | 0.51 b | 0.52 b | 0.53 b | 0.54 b | 0.55 b | 0.56 b | 0.57 b | 0.58 b | 0.59 b | 0.6 b | 0.61 b | 0.62 b | 0.63 b | 0.64 b | 0.65 b | 0.66 b | 0.67 b | 0.68 b | 0.69 b | 0.7 b | 0.71 b | 0.72 b | 0.73 b | 0.74 b | 0.75 b | 0.76 b | 0.77 b | 0.78 b | 0.79 b | 0.8 b | 0.81 b | 0.82 b | 0.83 b | 0.84 b | 0.85 b | 0.86 b | 0.87 b | 0.88 b | 0.89 b | 0.9 b | 0.91 b | 0.92 b | 0.93 b | 0.94 b | 0.95 b | 0.96 b | 0.97 b | 0.98 b | 0.99 b | 1 b |
Square femtometre or Square femtometer is a SI prefixes applied unit of area, symbol fm2, is a multiple of the of SI prefixes (femto) used with the metre.
| 1 square femtometers = 0.01 barns | 6 square femtometers = 0.06 barns |
| 2 square femtometers = 0.02 barns | 7 square femtometers = 0.07 barns |
| 3 square femtometers = 0.03 barns | 8 square femtometers = 0.08 barns |
| 4 square femtometers = 0.04 barns | 9 square femtometers = 0.09 barns |
| 5 square femtometers = 0.05 barns | 10 square femtometers = 0.1 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 = 100 square femtometers | 6 barns = 600 square femtometers |
| 2 barns = 200 square femtometers | 7 barns = 700 square femtometers |
| 3 barns = 300 square femtometers | 8 barns = 800 square femtometers |
| 4 barns = 400 square femtometers | 9 barns = 900 square femtometers |
| 5 barns = 500 square femtometers | 10 barns = 1000 square femtometers |
| 1 square femtometers = 0.01 barns |
| 1 barns = 100 square femtometers |