| McComb to Romeoville (Illinois) | 729.64 mi (1,174.24 km) |
| McComb to Romulus (Michigan) | 853.79 mi (1,374.04 km) |
| McComb to Ronkonkoma (New York) | 1,169.52 mi (1,882.16 km) |
| McComb to Roosevelt (New York) | 1,144.35 mi (1,841.66 km) |
| McComb to Rosamond (California) | 1,620.74 mi (2,608.33 km) |
| McComb to Rosaryville (Maryland) | 929.23 mi (1,495.44 km) |
| McComb to Roscoe (Illinois) | 776.75 mi (1,250.06 km) |
| McComb to Rose Hill (Virginia) | 916.80 mi (1,475.45 km) |
| McComb to Roseburg (Oregon) | 1,972.43 mi (3,174.33 km) |
| McComb to Rosedale (California) | 1,677.50 mi (2,699.68 km) |
| McComb to Rosedale (Maryland) | 963.56 mi (1,550.69 km) |
| McComb to Roselle (Illinois) | 753.45 mi (1,212.56 km) |
| McComb to Roselle (New Jersey) | 1,112.73 mi (1,790.77 km) |
| McComb to Roselle Park (New Jersey) | 1,112.88 mi (1,791.00 km) |
| McComb to Rosemead (California) | 1,613.03 mi (2,595.92 km) |
