| Dartford to Rockville (Maryland) | 3,677.18 mi (5,917.85 km) |
| Dartford to Rockville Centre (New York) | 3,463.92 mi (5,574.65 km) |
| Dartford to Rockwall (Texas) | 4,742.38 mi (7,632.13 km) |
| Dartford to Rocky Mount (North Carolina) | 3,846.43 mi (6,190.24 km) |
| Dartford to Rocky Point (New York) | 3,423.53 mi (5,509.63 km) |
| Dartford to Rocky River (Ohio) | 3,758.05 mi (6,047.99 km) |
| Dartford to Roessleville (New York) | 3,383.74 mi (5,445.60 km) |
| Dartford to Rogers (Arkansas) | 4,481.45 mi (7,212.20 km) |
| Dartford to Rogers (Minnesota) | 4,027.45 mi (6,481.55 km) |
| Dartford to Rohnert Park (California) | 5,342.31 mi (8,597.62 km) |
| Dartford to Rolla (Missouri) | 4,308.95 mi (6,934.59 km) |
| Dartford to Rolling Meadows (Illinois) | 3,968.84 mi (6,387.24 km) |
| Dartford to Roma (Texas) | 5,183.78 mi (8,342.49 km) |
| Dartford to Rome (Georgia) | 4,229.53 mi (6,806.76 km) |
| Dartford to Rome (New York) | 3,429.49 mi (5,519.23 km) |
