| Olhao to Castelletto sopra Ticino | 1,040.84 mi (1,675.08 km) |
| Olhao to Castelli Calepio | 1,092.10 mi (1,757.56 km) |
| Olhao to Castelnovo ne' Monti | 1,080.14 mi (1,738.32 km) |
| Olhao to Castelnuovo Berardenga | 1,107.24 mi (1,781.93 km) |
| Olhao to Castelnuovo di Porto | 1,135.99 mi (1,828.21 km) |
| Olhao to Castelnuovo di Verona | 1,123.93 mi (1,808.79 km) |
| Olhao to Castelnuovo Rangone | 1,107.54 mi (1,782.42 km) |
| Olhao to Castelvetrano | 1,131.89 mi (1,821.60 km) |
| Olhao to Castelvetro di Modena | 1,107.05 mi (1,781.63 km) |
| Olhao to Castenaso | 1,131.25 mi (1,820.58 km) |
| Olhao to Castenedolo | 1,104.38 mi (1,777.32 km) |
| Olhao to Castiglion Fiorentino | 1,127.15 mi (1,813.98 km) |
| Olhao to Castiglione del Lago | 1,129.57 mi (1,817.87 km) |
| Olhao to Castiglione delle Stiviere | 1,111.22 mi (1,788.34 km) |
| Olhao to Castrolibero | 1,311.52 mi (2,110.68 km) |
