1 b =
1.55E-25 square inch (US survey)
2 b =
3.1E-25 square inch (US survey)
3 b =
4.65E-25 square inch (US survey)
4 b =
6.2E-25 square inch (US survey)
5 b =
7.75E-25 square inch (US survey)
6 b =
9.3E-25 square inch (US survey)
7 b =
1.085E-24 square inch (US survey)
8 b =
1.24E-24 square inch (US survey)
9 b =
1.395E-24 square inch (US survey)
10 b =
1.55E-24 square inch (US survey)
11 b =
1.705E-24 square inch (US survey)
12 b =
1.86E-24 square inch (US survey)
13 b =
2.015E-24 square inch (US survey)
14 b =
2.17E-24 square inch (US survey)
15 b =
2.325E-24 square inch (US survey)
16 b =
2.48E-24 square inch (US survey)
17 b =
2.635E-24 square inch (US survey)
18 b =
2.79E-24 square inch (US survey)
19 b =
2.945E-24 square inch (US survey)
20 b =
3.1E-24 square inch (US survey)
21 b =
3.255E-24 square inch (US survey)
22 b =
3.41E-24 square inch (US survey)
23 b =
3.565E-24 square inch (US survey)
24 b =
3.72E-24 square inch (US survey)
25 b =
3.875E-24 square inch (US survey)
26 b =
4.03E-24 square inch (US survey)
27 b =
4.185E-24 square inch (US survey)
28 b =
4.34E-24 square inch (US survey)
29 b =
4.495E-24 square inch (US survey)
30 b =
4.65E-24 square inch (US survey)