| Mackworth to Romeoville (Illinois) | 3,879.31 mi (6,243.15 km) |
| Mackworth to Romulus (Michigan) | 3,672.70 mi (5,910.64 km) |
| Mackworth to Ronkonkoma (New York) | 3,335.69 mi (5,368.27 km) |
| Mackworth to Roosevelt (New York) | 3,359.60 mi (5,406.75 km) |
| Mackworth to Rosamond (California) | 5,283.22 mi (8,502.51 km) |
| Mackworth to Rosaryville (Maryland) | 3,576.30 mi (5,755.49 km) |
| Mackworth to Roscoe (Illinois) | 3,875.37 mi (6,236.80 km) |
| Mackworth to Rose Hill (Virginia) | 3,586.64 mi (5,772.14 km) |
| Mackworth to Roseburg (Oregon) | 4,950.43 mi (7,966.95 km) |
| Mackworth to Rosedale (California) | 5,283.95 mi (8,503.70 km) |
| Mackworth to Rosedale (Maryland) | 3,537.78 mi (5,693.51 km) |
| Mackworth to Roselle (Illinois) | 3,862.21 mi (6,215.63 km) |
| Mackworth to Roselle (New Jersey) | 3,387.85 mi (5,452.22 km) |
| Mackworth to Roselle Park (New Jersey) | 3,387.56 mi (5,451.74 km) |
| Mackworth to Rosemead (California) | 5,324.87 mi (8,569.54 km) |
