| Mercer Island to Fortuna (California) | 491.45 mi (790.91 km) |
| Mercer Island to Fortuna Foothills (Arizona) | 1,108.48 mi (1,783.92 km) |
| Mercer Island to Foster City (California) | 691.68 mi (1,113.15 km) |
| Mercer Island to Fostoria (Ohio) | 1,946.36 mi (3,132.36 km) |
| Mercer Island to Fountain (Colorado) | 1,072.75 mi (1,726.42 km) |
| Mercer Island to Fountain Hills (Arizona) | 1,108.19 mi (1,783.47 km) |
| Mercer Island to Fountain Inn (South Carolina) | 2,234.33 mi (3,595.81 km) |
| Mercer Island to Fountain Valley (California) | 982.88 mi (1,581.79 km) |
| Mercer Island to Fountainebleau (Florida) | 2,718.97 mi (4,375.76 km) |
| Mercer Island to Four Corners (Oregon) | 185.61 mi (298.72 km) |
| Mercer Island to Four Corners (Texas) | 1,876.97 mi (3,020.69 km) |
| Mercer Island to Four Square Mile (Colorado) | 1,020.87 mi (1,642.93 km) |
| Mercer Island to Fox Crossing (Wisconsin) | 1,626.47 mi (2,617.55 km) |
| Mercer Island to Fox Lake (Illinois) | 1,686.76 mi (2,714.57 km) |
| Mercer Island to Framingham (Massachusetts) | 2,465.76 mi (3,968.26 km) |
