| Rennes to Castelfiorentino | 682.67 mi (1,098.65 km) |
| Rennes to Castelfranco di Sopra | 707.16 mi (1,138.07 km) |
| Rennes to Castelfranco di Sotto | 669.82 mi (1,077.97 km) |
| Rennes to Castelfranco Emilia | 653.02 mi (1,050.93 km) |
| Rennes to Castelfranco Veneto | 663.65 mi (1,068.05 km) |
| Rennes to Castellabate | 982.62 mi (1,581.37 km) |
| Rennes to Castellammare del Golfo | 1,009.71 mi (1,624.97 km) |
| Rennes to Castellammare di Stabia | 945.29 mi (1,521.30 km) |
| Rennes to Castellamonte | 482.64 mi (776.73 km) |
| Rennes to Castellana Grotte | 1,050.69 mi (1,690.92 km) |
| Rennes to Castellaneta | 1,050.66 mi (1,690.87 km) |
| Rennes to Castellanza | 528.21 mi (850.07 km) |
| Rennes to Castellarano | 642.09 mi (1,033.34 km) |
| Rennes to Castelleone | 575.31 mi (925.86 km) |
| Rennes to Castelletto sopra Ticino | 513.66 mi (826.66 km) |
