| Plonsk to Cividale del Friuli | 548.59 mi (882.87 km) |
| Plonsk to Civita Castellana | 804.36 mi (1,294.49 km) |
| Plonsk to Civitanova Marche | 713.76 mi (1,148.69 km) |
| Plonsk to Civitavecchia | 829.93 mi (1,335.64 km) |
| Plonsk to Civitella in Val di Chiana | 751.07 mi (1,208.73 km) |
| Plonsk to Clusone | 661.22 mi (1,064.14 km) |
| Plonsk to Coccaglio | 677.09 mi (1,089.66 km) |
| Plonsk to Codigoro | 656.62 mi (1,056.73 km) |
| Plonsk to Codogno | 707.00 mi (1,137.81 km) |
| Plonsk to Codroipo | 568.34 mi (914.65 km) |
| Plonsk to Cogoleto | 781.08 mi (1,257.03 km) |
| Plonsk to Colle di Val d'Elsa | 766.60 mi (1,233.72 km) |
| Plonsk to Colle Salvetti | 771.86 mi (1,242.18 km) |
| Plonsk to Collecchio | 713.94 mi (1,148.98 km) |
| Plonsk to Colleferro | 827.73 mi (1,332.11 km) |
