| Olney to Chivasso | 4,164.25 mi (6,701.72 km) |
| Olney to Ciampino | 4,484.59 mi (7,217.25 km) |
| Olney to Cicciano | 4,600.11 mi (7,403.16 km) |
| Olney to Cingoli | 4,455.87 mi (7,171.03 km) |
| Olney to Cinisello Balsamo | 4,210.10 mi (6,775.50 km) |
| Olney to Cinisi | 4,639.74 mi (7,466.94 km) |
| Olney to Cirie | 4,150.42 mi (6,679.46 km) |
| Olney to Ciro Marina | 4,775.16 mi (7,684.88 km) |
| Olney to Cislago | 4,196.19 mi (6,753.11 km) |
| Olney to Cisterna di Latina | 4,502.15 mi (7,245.51 km) |
| Olney to Cisternino | 4,735.90 mi (7,621.69 km) |
| Olney to Citta di Castello | 4,410.50 mi (7,098.01 km) |
| Olney to Citta Sant'Angelo | 4,522.31 mi (7,277.96 km) |
| Olney to Cittadella | 4,316.00 mi (6,945.93 km) |
| Olney to Cittanova | 4,768.02 mi (7,673.39 km) |
