| Fostoria to Rosemont (California) | 2,004.70 mi (3,226.26 km) |
| Fostoria to Rosemount (Minnesota) | 547.00 mi (880.31 km) |
| Fostoria to Rosenberg (Texas) | 1,062.17 mi (1,709.40 km) |
| Fostoria to Roseville (California) | 1,998.32 mi (3,215.99 km) |
| Fostoria to Roseville (Michigan) | 96.26 mi (154.91 km) |
| Fostoria to Roseville (Minnesota) | 558.59 mi (898.97 km) |
| Fostoria to Rossmoor (California) | 1,953.92 mi (3,144.54 km) |
| Fostoria to Rossville (Maryland) | 386.19 mi (621.51 km) |
| Fostoria to Roswell (Georgia) | 494.68 mi (796.10 km) |
| Fostoria to Roswell (New Mexico) | 1,275.32 mi (2,052.43 km) |
| Fostoria to Round Lake (Illinois) | 255.35 mi (410.95 km) |
| Fostoria to Round Lake Beach (Illinois) | 254.88 mi (410.19 km) |
| Fostoria to Round Rock (Texas) | 1,082.17 mi (1,741.58 km) |
| Fostoria to Rowland Heights (California) | 1,938.73 mi (3,120.09 km) |
| Fostoria to Rowlett (Texas) | 919.86 mi (1,480.37 km) |
