| Femtometer | League |
| 1 fermi | 2.0712381654629E-19 league |
| 2 fermi | 4.1424763309259E-19 league |
| 3 fermi | 6.2137144963888E-19 league |
| 4 fermi | 8.2849526618517E-19 league |
| 5 fermi | 1.0356190827315E-18 league |
| 6 fermi | 1.2427428992778E-18 league |
| 7 fermi | 1.4498667158241E-18 league |
| 8 fermi | 1.6569905323703E-18 league |
| 9 fermi | 1.8641143489166E-18 league |
| 10 fermi | 2.0712381654629E-18 league |
| 11 fermi | 2.2783619820092E-18 league |
| 12 fermi | 2.4854857985555E-18 league |
| 13 fermi | 2.6926096151018E-18 league |
| 14 fermi | 2.8997334316481E-18 league |
| 15 fermi | 3.1068572481944E-18 league |
| 16 fermi | 3.3139810647407E-18 league |
| 17 fermi | 3.521104881287E-18 league |
| 18 fermi | 3.7282286978333E-18 league |
| 19 fermi | 3.9353525143796E-18 league |
| 20 fermi | 4.1424763309259E-18 league |