| Leiria to Cividale del Friuli | 1,202.39 mi (1,935.05 km) |
| Leiria to Civita Castellana | 1,116.53 mi (1,796.87 km) |
| Leiria to Civitanova Marche | 1,187.26 mi (1,910.71 km) |
| Leiria to Civitavecchia | 1,084.89 mi (1,745.96 km) |
| Leiria to Civitella in Val di Chiana | 1,087.14 mi (1,749.58 km) |
| Leiria to Clusone | 1,037.21 mi (1,669.23 km) |
| Leiria to Coccaglio | 1,032.12 mi (1,661.03 km) |
| Leiria to Codigoro | 1,121.54 mi (1,804.95 km) |
| Leiria to Codogno | 1,011.81 mi (1,628.34 km) |
| Leiria to Codroipo | 1,178.99 mi (1,897.40 km) |
| Leiria to Cogoleto | 948.23 mi (1,526.03 km) |
| Leiria to Colle di Val d'Elsa | 1,057.92 mi (1,702.56 km) |
| Leiria to Colle Salvetti | 1,027.48 mi (1,653.56 km) |
| Leiria to Collecchio | 1,029.20 mi (1,656.34 km) |
| Leiria to Colleferro | 1,147.16 mi (1,846.17 km) |
