| Round Rock to Fortuna (California) | 1,634.07 mi (2,629.79 km) |
| Round Rock to Fortuna Foothills (Arizona) | 994.69 mi (1,600.80 km) |
| Round Rock to Foster City (California) | 1,484.65 mi (2,389.32 km) |
| Round Rock to Fostoria (Ohio) | 1,082.17 mi (1,741.58 km) |
| Round Rock to Fountain (Colorado) | 690.35 mi (1,111.02 km) |
| Round Rock to Fountain Hills (Arizona) | 850.41 mi (1,368.60 km) |
| Round Rock to Fountain Inn (South Carolina) | 943.83 mi (1,518.95 km) |
| Round Rock to Fountain Valley (California) | 1,205.31 mi (1,939.76 km) |
| Round Rock to Fountainebleau (Florida) | 1,103.60 mi (1,776.08 km) |
| Round Rock to Four Corners (Oregon) | 1,692.05 mi (2,723.09 km) |
| Round Rock to Four Corners (Texas) | 133.64 mi (215.08 km) |
| Round Rock to Four Square Mile (Colorado) | 752.19 mi (1,210.54 km) |
| Round Rock to Fox Crossing (Wisconsin) | 1,070.71 mi (1,723.14 km) |
| Round Rock to Fox Lake (Illinois) | 974.79 mi (1,568.77 km) |
| Round Rock to Framingham (Massachusetts) | 1,660.14 mi (2,671.74 km) |
