| Olhao to Corinth (Mississippi) | 4,366.17 mi (7,026.67 km) |
| Olhao to Corinth (Texas) | 4,852.41 mi (7,809.20 km) |
| Olhao to Cornelius (North Carolina) | 3,964.37 mi (6,380.04 km) |
| Olhao to Cornelius (Oregon) | 5,456.09 mi (8,780.72 km) |
| Olhao to Corning (New York) | 3,600.52 mi (5,794.48 km) |
| Olhao to Corona (California) | 5,774.92 mi (9,293.84 km) |
| Olhao to Coronado (California) | 5,811.28 mi (9,352.35 km) |
| Olhao to Corpus Christi (Texas) | 5,070.66 mi (8,160.43 km) |
| Olhao to Corsicana (Texas) | 4,861.59 mi (7,823.97 km) |
| Olhao to Cortland (New York) | 3,548.08 mi (5,710.08 km) |
| Olhao to Corvallis (Oregon) | 5,508.73 mi (8,865.44 km) |
| Olhao to Coshocton (Ohio) | 3,879.54 mi (6,243.52 km) |
| Olhao to Costa Mesa (California) | 5,798.87 mi (9,332.38 km) |
| Olhao to Coto de Caza (California) | 5,787.86 mi (9,314.65 km) |
| Olhao to Cottage Grove (Minnesota) | 4,268.20 mi (6,869.01 km) |
