| Grayslake to Friendly (Maryland) | 630.98 mi (1,015.46 km) |
| Grayslake to Friendswood (Texas) | 971.92 mi (1,564.16 km) |
| Grayslake to Frisco (Texas) | 794.76 mi (1,279.04 km) |
| Grayslake to Front Royal (Virginia) | 567.34 mi (913.05 km) |
| Grayslake to Fruit Cove (Florida) | 917.71 mi (1,476.92 km) |
| Grayslake to Fruita (Colorado) | 1,102.57 mi (1,774.42 km) |
| Grayslake to Fruitville (Florida) | 1,083.35 mi (1,743.49 km) |
| Grayslake to Fuller Heights (Florida) | 1,052.20 mi (1,693.35 km) |
| Grayslake to Fullerton (California) | 1,716.28 mi (2,762.08 km) |
| Grayslake to Fullerton (Pennsylvania) | 659.61 mi (1,061.54 km) |
| Grayslake to Fulshear (Texas) | 976.62 mi (1,571.72 km) |
| Grayslake to Fulton (Missouri) | 316.51 mi (509.37 km) |
| Grayslake to Fulton (New York) | 592.03 mi (952.78 km) |
| Grayslake to Fuquay-Varina (North Carolina) | 680.72 mi (1,095.51 km) |
| Grayslake to Gadsden (Alabama) | 585.97 mi (943.03 km) |
