| Olhao to Castelfidardo | 1,208.16 mi (1,944.34 km) |
| Olhao to Castelfiorentino | 1,086.76 mi (1,748.98 km) |
| Olhao to Castelfranco di Sopra | 1,115.43 mi (1,795.11 km) |
| Olhao to Castelfranco di Sotto | 1,078.70 mi (1,736.01 km) |
| Olhao to Castelfranco Emilia | 1,114.20 mi (1,793.13 km) |
| Olhao to Castelfranco Veneto | 1,182.06 mi (1,902.35 km) |
| Olhao to Castellabate | 1,246.67 mi (2,006.32 km) |
| Olhao to Castellammare del Golfo | 1,135.22 mi (1,826.95 km) |
| Olhao to Castellammare di Stabia | 1,223.83 mi (1,969.57 km) |
| Olhao to Castellamonte | 990.67 mi (1,594.33 km) |
| Olhao to Castellana Grotte | 1,364.92 mi (2,196.63 km) |
| Olhao to Castellaneta | 1,351.86 mi (2,175.62 km) |
| Olhao to Castellanza | 1,048.76 mi (1,687.82 km) |
| Olhao to Castellarano | 1,101.11 mi (1,772.06 km) |
| Olhao to Castelleone | 1,075.72 mi (1,731.20 km) |
