| Lake Oswego to Cognac | 5,229.74 mi (8,416.46 km) |
| Lake Oswego to Cogolin | 5,563.65 mi (8,953.83 km) |
| Lake Oswego to Colmar | 5,307.27 mi (8,541.22 km) |
| Lake Oswego to Colombes | 5,125.34 mi (8,248.44 km) |
| Lake Oswego to Colomiers | 5,393.85 mi (8,680.57 km) |
| Lake Oswego to Combs-la-Ville | 5,147.76 mi (8,284.52 km) |
| Lake Oswego to Comines | 5,043.59 mi (8,116.88 km) |
| Lake Oswego to Compiegne | 5,113.46 mi (8,229.32 km) |
| Lake Oswego to Concarneau | 5,005.91 mi (8,056.24 km) |
| Lake Oswego to Conde-sur-l'Escaut | 5,076.10 mi (8,169.19 km) |
| Lake Oswego to Conflans-Sainte-Honorine | 5,116.98 mi (8,234.98 km) |
| Lake Oswego to Corbas | 5,380.43 mi (8,658.96 km) |
| Lake Oswego to Corbeil-Essonnes | 5,148.76 mi (8,286.12 km) |
| Lake Oswego to Cormeilles-en-Parisis | 5,121.18 mi (8,241.74 km) |
| Lake Oswego to Cosne sur Loire | 5,227.89 mi (8,413.48 km) |
