| Olsztyn to Cortona | 821.77 mi (1,322.50 km) |
| Olsztyn to Cosenza | 1,019.85 mi (1,641.29 km) |
| Olsztyn to Cossato | 788.42 mi (1,268.84 km) |
| Olsztyn to Costa Volpino | 716.68 mi (1,153.39 km) |
| Olsztyn to Creazzo | 696.25 mi (1,120.51 km) |
| Olsztyn to Crema | 754.43 mi (1,214.14 km) |
| Olsztyn to Cremona | 757.87 mi (1,219.67 km) |
| Olsztyn to Crevalcore | 752.94 mi (1,211.75 km) |
| Olsztyn to Crispiano | 922.91 mi (1,485.29 km) |
| Olsztyn to Crosia | 997.19 mi (1,604.82 km) |
| Olsztyn to Crotone | 1,027.54 mi (1,653.67 km) |
| Olsztyn to Cuneo | 871.22 mi (1,402.10 km) |
| Olsztyn to Cuorgne | 813.84 mi (1,309.75 km) |
| Olsztyn to Cusano Milanino | 758.70 mi (1,221.02 km) |
| Olsztyn to Cutro | 1,031.99 mi (1,660.83 km) |
