| Abbreviation | Definition |
|---|---|
| FTOV | Frequency to Voltage |
| FTTY | Forty Two Thousand Years |
| FTU | Formazin Turbidity Units |
| FU | Fluorescence Unit |
| FU | Formula Unit |
| FU | Future Unit |
| FY | Federation Year |
| G | Gauge |
| G | girth |
| G | Gram |
| GA | Gauge |
| GA | Gazillion Annum |
| GA | Giga Annum |
| GAL/HR | Gallons Per Hour |
| GAL/MIN | Gallon Per Minute |
| Gb | Gigabits |
| GB | GigaBytes |
| GB | Golfkl Bbur |
| GB/S | Gigabit Per Second |
| GB/S | Gigabyte Per Second |