| Femtogram | Denarius (Biblical Roman) |
| 1 fg | 2.5974025974026E-15 denarius |
| 2 fg | 5.1948051948052E-15 denarius |
| 3 fg | 7.7922077922078E-15 denarius |
| 4 fg | 1.038961038961E-14 denarius |
| 5 fg | 1.2987012987013E-14 denarius |
| 6 fg | 1.5584415584416E-14 denarius |
| 7 fg | 1.8181818181818E-14 denarius |
| 8 fg | 2.0779220779221E-14 denarius |
| 9 fg | 2.3376623376623E-14 denarius |
| 10 fg | 2.5974025974026E-14 denarius |
| 11 fg | 2.8571428571429E-14 denarius |
| 12 fg | 3.1168831168831E-14 denarius |
| 13 fg | 3.3766233766234E-14 denarius |
| 14 fg | 3.6363636363636E-14 denarius |
| 15 fg | 3.8961038961039E-14 denarius |
| 16 fg | 4.1558441558442E-14 denarius |
| 17 fg | 4.4155844155844E-14 denarius |
| 18 fg | 4.6753246753247E-14 denarius |
| 19 fg | 4.9350649350649E-14 denarius |
| 20 fg | 5.1948051948052E-14 denarius |