| Witham to Corinth (Mississippi) | 4,336.60 mi (6,979.09 km) |
| Witham to Corinth (Texas) | 4,759.61 mi (7,659.85 km) |
| Witham to Cornelius (North Carolina) | 4,005.59 mi (6,446.37 km) |
| Witham to Cornelius (Oregon) | 4,927.57 mi (7,930.15 km) |
| Witham to Corning (New York) | 3,545.45 mi (5,705.85 km) |
| Witham to Corona (California) | 5,440.80 mi (8,756.12 km) |
| Witham to Coronado (California) | 5,496.53 mi (8,845.81 km) |
| Witham to Corpus Christi (Texas) | 5,056.62 mi (8,137.84 km) |
| Witham to Corsicana (Texas) | 4,791.93 mi (7,711.87 km) |
| Witham to Cortland (New York) | 3,490.92 mi (5,618.09 km) |
| Witham to Corvallis (Oregon) | 4,988.70 mi (8,028.54 km) |
| Witham to Coshocton (Ohio) | 3,819.37 mi (6,146.69 km) |
| Witham to Costa Mesa (California) | 5,463.11 mi (8,792.02 km) |
| Witham to Coto de Caza (California) | 5,456.74 mi (8,781.77 km) |
| Witham to Cottage Grove (Minnesota) | 4,022.86 mi (6,474.17 km) |
