| Ontario to Cockermouth | 5,177.94 mi (8,333.09 km) |
| Ontario to Colchester | 5,436.01 mi (8,748.41 km) |
| Ontario to Coleford | 5,326.87 mi (8,572.77 km) |
| Ontario to Colne | 5,250.20 mi (8,449.38 km) |
| Ontario to Colwyn Bay | 5,226.23 mi (8,410.80 km) |
| Ontario to Congleton | 5,279.41 mi (8,496.39 km) |
| Ontario to Conisbrough | 5,296.67 mi (8,524.17 km) |
| Ontario to Connahs Quay | 5,250.06 mi (8,449.16 km) |
| Ontario to Consett | 5,217.17 mi (8,396.22 km) |
| Ontario to Conwy | 5,222.46 mi (8,404.73 km) |
| Ontario to Cookstown | 5,070.99 mi (8,160.97 km) |
| Ontario to Corby | 5,357.81 mi (8,622.57 km) |
| Ontario to Corfe Mullen | 5,391.96 mi (8,677.52 km) |
| Ontario to Corsham | 5,356.87 mi (8,621.05 km) |
| Ontario to Coseley | 5,310.74 mi (8,546.81 km) |
