| Grays to Romeoville (Illinois) | 3,995.37 mi (6,429.93 km) |
| Grays to Romulus (Michigan) | 3,786.48 mi (6,093.76 km) |
| Grays to Ronkonkoma (New York) | 3,440.64 mi (5,537.18 km) |
| Grays to Roosevelt (New York) | 3,464.76 mi (5,575.99 km) |
| Grays to Rosamond (California) | 5,409.07 mi (8,705.05 km) |
| Grays to Rosaryville (Maryland) | 3,681.73 mi (5,925.16 km) |
| Grays to Roscoe (Illinois) | 3,992.55 mi (6,425.40 km) |
| Grays to Rose Hill (Virginia) | 3,692.32 mi (5,942.22 km) |
| Grays to Roseburg (Oregon) | 5,078.14 mi (8,172.48 km) |
| Grays to Rosedale (California) | 5,410.17 mi (8,706.82 km) |
| Grays to Rosedale (Maryland) | 3,643.62 mi (5,863.84 km) |
| Grays to Roselle (Illinois) | 3,978.54 mi (6,402.85 km) |
| Grays to Roselle (New Jersey) | 3,493.52 mi (5,622.28 km) |
| Grays to Roselle Park (New Jersey) | 3,493.25 mi (5,621.84 km) |
| Grays to Rosemead (California) | 5,450.50 mi (8,771.73 km) |
