Example: To convert 5 microgram to femtogram, multiply 5 by 1e-9 to get 5.0000e-9 fg (5.0000e-9 fg).
| µg | fg |
|---|---|
| 3999999999.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000000.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000001.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000002.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000003.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000004.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000005.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000006.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000007.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000008.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000009.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000010.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000011.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000012.9999995 µg | 4 fg (4.0000e+0 fg) |
| 4000000013.9999995 µg | 4 fg (4.0000e+0 fg) |