| Witham to River Ridge (Louisiana) | 4,656.38 mi (7,493.72 km) |
| Witham to Riverbank (California) | 5,321.31 mi (8,563.83 km) |
| Witham to Riverdale (Georgia) | 4,241.17 mi (6,825.51 km) |
| Witham to Riverdale (Illinois) | 3,978.46 mi (6,402.70 km) |
| Witham to Riverside (California) | 5,430.98 mi (8,740.32 km) |
| Witham to Riverside (Ohio) | 3,930.68 mi (6,325.82 km) |
| Witham to Riverton (Utah) | 4,887.63 mi (7,865.89 km) |
| Witham to Riverton (Wyoming) | 4,637.46 mi (7,463.28 km) |
| Witham to Riverview (Florida) | 4,441.18 mi (7,147.38 km) |
| Witham to Riverview (Michigan) | 3,784.41 mi (6,090.41 km) |
| Witham to Riviera Beach (Florida) | 4,400.68 mi (7,082.21 km) |
| Witham to Riviera Beach (Maryland) | 3,657.03 mi (5,885.42 km) |
| Witham to Roanoke (Virginia) | 3,882.63 mi (6,248.50 km) |
| Witham to Roanoke Rapids (North Carolina) | 3,827.85 mi (6,160.32 km) |
| Witham to Robbinsdale (Minnesota) | 4,027.29 mi (6,481.29 km) |
