| Olean to Castelletto sopra Ticino | 4,116.66 mi (6,625.12 km) |
| Olean to Castelli Calepio | 4,172.01 mi (6,714.20 km) |
| Olean to Castelnovo ne' Monti | 4,236.48 mi (6,817.95 km) |
| Olean to Castelnuovo Berardenga | 4,323.31 mi (6,957.70 km) |
| Olean to Castelnuovo di Porto | 4,411.93 mi (7,100.31 km) |
| Olean to Castelnuovo di Verona | 4,214.96 mi (6,783.32 km) |
| Olean to Castelnuovo Rangone | 4,254.37 mi (6,846.75 km) |
| Olean to Castelvetrano | 4,601.70 mi (7,405.73 km) |
| Olean to Castelvetro di Modena | 4,256.92 mi (6,850.85 km) |
| Olean to Castenaso | 4,278.17 mi (6,885.05 km) |
| Olean to Castenedolo | 4,194.25 mi (6,750.00 km) |
| Olean to Castiglion Fiorentino | 4,340.84 mi (6,985.91 km) |
| Olean to Castiglione del Lago | 4,354.09 mi (7,007.23 km) |
| Olean to Castiglione delle Stiviere | 4,205.19 mi (6,767.60 km) |
| Olean to Castrolibero | 4,682.70 mi (7,536.08 km) |
