Example: To convert 5 femtogram to Atomic mass unit, multiply 5 by 1.6605401999999888e-9 to get 8.3027e-9 u (8.3027e-9 u).
| fg | u |
|---|---|
| 4 fg | 6.6422e-9 u (6.6422e-9 u) |
| 5 fg | 8.3027e-9 u (8.3027e-9 u) |
| 6 fg | 9.9632e-9 u (9.9632e-9 u) |
| 7 fg | 1.1624e-8 u (1.1624e-8 u) |
| 8 fg | 1.3284e-8 u (1.3284e-8 u) |
| 9 fg | 1.4945e-8 u (1.4945e-8 u) |
| 10 fg | 1.6605e-8 u (1.6605e-8 u) |
| 11 fg | 1.8266e-8 u (1.8266e-8 u) |
| 12 fg | 1.9926e-8 u (1.9926e-8 u) |
| 13 fg | 2.1587e-8 u (2.1587e-8 u) |
| 14 fg | 2.3248e-8 u (2.3248e-8 u) |
| 15 fg | 2.4908e-8 u (2.4908e-8 u) |
| 16 fg | 2.6569e-8 u (2.6569e-8 u) |
| 17 fg | 2.8229e-8 u (2.8229e-8 u) |
| 18 fg | 2.9890e-8 u (2.9890e-8 u) |