| Dartford to Ridgeland (Mississippi) | 4,520.43 mi (7,274.92 km) |
| Dartford to Ridgewood (New Jersey) | 3,469.56 mi (5,583.72 km) |
| Dartford to Rifle (Colorado) | 4,805.95 mi (7,734.43 km) |
| Dartford to Rincon (Georgia) | 4,163.55 mi (6,700.59 km) |
| Dartford to Ringwood (New Jersey) | 3,470.80 mi (5,585.71 km) |
| Dartford to Río Grande (Puerto Rico) | 4,206.60 mi (6,769.87 km) |
| Dartford to Rio Grande City (Texas) | 5,178.41 mi (8,333.84 km) |
| Dartford to Rio Linda (California) | 5,285.88 mi (8,506.80 km) |
| Dartford to Rio Rancho (New Mexico) | 4,997.03 mi (8,041.94 km) |
| Dartford to Rio Rico (Arizona) | 5,355.53 mi (8,618.89 km) |
| Dartford to Ripon (California) | 5,331.43 mi (8,580.11 km) |
| Dartford to River Edge (New Jersey) | 3,468.93 mi (5,582.70 km) |
| Dartford to River Falls (Wisconsin) | 4,008.65 mi (6,451.29 km) |
| Dartford to River Forest (Illinois) | 3,969.39 mi (6,388.12 km) |
| Dartford to River Grove (Illinois) | 3,968.73 mi (6,387.06 km) |
