| Mercerville to Romeoville (Illinois) | 705.74 mi (1,135.78 km) |
| Mercerville to Romulus (Michigan) | 470.95 mi (757.92 km) |
| Mercerville to Ronkonkoma (New York) | 91.18 mi (146.73 km) |
| Mercerville to Roosevelt (New York) | 65.82 mi (105.93 km) |
| Mercerville to Rosamond (California) | 2,388.66 mi (3,844.18 km) |
| Mercerville to Rosaryville (Maryland) | 152.48 mi (245.40 km) |
| Mercerville to Roscoe (Illinois) | 757.06 mi (1,218.38 km) |
| Mercerville to Rose Hill (Virginia) | 163.14 mi (262.54 km) |
| Mercerville to Roseburg (Oregon) | 2,482.10 mi (3,994.55 km) |
| Mercerville to Rosedale (California) | 2,427.18 mi (3,906.18 km) |
| Mercerville to Rosedale (Maryland) | 115.12 mi (185.26 km) |
| Mercerville to Roselle (Illinois) | 706.89 mi (1,137.62 km) |
| Mercerville to Roselle (New Jersey) | 36.67 mi (59.01 km) |
| Mercerville to Roselle Park (New Jersey) | 37.14 mi (59.77 km) |
| Mercerville to Rosemead (California) | 2,402.85 mi (3,867.01 km) |
