Example: To convert 5 Electron mass (rest) to femtogram, multiply 5 by 1097768382880.8 to get 5.4888e+12 fg (5.4888e+12 fg).
| m_e | fg |
|---|---|
| 11 m_e | 1.2075e+13 fg (1.2075e+13 fg) |
| 12 m_e | 1.3173e+13 fg (1.3173e+13 fg) |
| 13 m_e | 1.4271e+13 fg (1.4271e+13 fg) |
| 14 m_e | 1.5369e+13 fg (1.5369e+13 fg) |
| 15 m_e | 1.6467e+13 fg (1.6467e+13 fg) |
| 16 m_e | 1.7564e+13 fg (1.7564e+13 fg) |
| 17 m_e | 1.8662e+13 fg (1.8662e+13 fg) |
| 18 m_e | 1.9760e+13 fg (1.9760e+13 fg) |
| 19 m_e | 2.0858e+13 fg (2.0858e+13 fg) |
| 20 m_e | 2.1955e+13 fg (2.1955e+13 fg) |
| 21 m_e | 2.3053e+13 fg (2.3053e+13 fg) |
| 22 m_e | 2.4151e+13 fg (2.4151e+13 fg) |
| 23 m_e | 2.5249e+13 fg (2.5249e+13 fg) |
| 24 m_e | 2.6346e+13 fg (2.6346e+13 fg) |
| 25 m_e | 2.7444e+13 fg (2.7444e+13 fg) |