| Rio Rico to Cividale del Friuli | 6,051.21 mi (9,738.49 km) |
| Rio Rico to Civita Castellana | 6,200.98 mi (9,979.51 km) |
| Rio Rico to Civitanova Marche | 6,199.27 mi (9,976.77 km) |
| Rio Rico to Civitavecchia | 6,188.15 mi (9,958.87 km) |
| Rio Rico to Civitella in Val di Chiana | 6,121.73 mi (9,851.97 km) |
| Rio Rico to Clusone | 5,941.44 mi (9,561.82 km) |
| Rio Rico to Coccaglio | 5,957.48 mi (9,587.64 km) |
| Rio Rico to Codigoro | 6,067.64 mi (9,764.92 km) |
| Rio Rico to Codogno | 5,966.68 mi (9,602.44 km) |
| Rio Rico to Codroipo | 6,042.57 mi (9,724.57 km) |
| Rio Rico to Cogoleto | 5,964.20 mi (9,598.45 km) |
| Rio Rico to Colle di Val d'Elsa | 6,101.44 mi (9,819.33 km) |
| Rio Rico to Colle Salvetti | 6,068.31 mi (9,766.00 km) |
| Rio Rico to Collecchio | 6,004.29 mi (9,662.97 km) |
| Rio Rico to Colleferro | 6,250.48 mi (10,059.17 km) |
