| Oak Harbor to Cockermouth | 4,498.63 mi (7,239.84 km) |
| Oak Harbor to Colchester | 4,757.85 mi (7,657.02 km) |
| Oak Harbor to Coleford | 4,671.90 mi (7,518.70 km) |
| Oak Harbor to Colne | 4,572.04 mi (7,357.99 km) |
| Oak Harbor to Colwyn Bay | 4,562.78 mi (7,343.09 km) |
| Oak Harbor to Congleton | 4,608.35 mi (7,416.41 km) |
| Oak Harbor to Conisbrough | 4,616.56 mi (7,429.64 km) |
| Oak Harbor to Connahs Quay | 4,583.49 mi (7,376.41 km) |
| Oak Harbor to Consett | 4,527.26 mi (7,285.92 km) |
| Oak Harbor to Conwy | 4,559.89 mi (7,338.43 km) |
| Oak Harbor to Cookstown | 4,411.02 mi (7,098.85 km) |
| Oak Harbor to Corby | 4,684.06 mi (7,538.26 km) |
| Oak Harbor to Corfe Mullen | 4,743.32 mi (7,633.64 km) |
| Oak Harbor to Corsham | 4,702.72 mi (7,568.30 km) |
| Oak Harbor to Coseley | 4,644.90 mi (7,475.25 km) |
