| Os to Celano | 1,299.12 mi (2,090.73 km) |
| Os to Cento | 1,097.02 mi (1,765.48 km) |
| Os to Cepagatti | 1,286.09 mi (2,069.77 km) |
| Os to Ceprano | 1,334.88 mi (2,148.28 km) |
| Os to Cercola | 1,390.34 mi (2,237.54 km) |
| Os to Cerea | 1,064.72 mi (1,713.51 km) |
| Os to Cerese | 1,070.85 mi (1,723.37 km) |
| Os to Cerignola | 1,383.12 mi (2,225.92 km) |
| Os to Cermenate | 1,014.50 mi (1,632.68 km) |
| Os to Cernusco sul Naviglio | 1,028.59 mi (1,655.36 km) |
| Os to Cerreto Guidi | 1,159.38 mi (1,865.84 km) |
| Os to Cerro Maggiore | 1,020.58 mi (1,642.47 km) |
| Os to Certaldo | 1,175.59 mi (1,891.93 km) |
| Os to Cerveteri | 1,290.17 mi (2,076.33 km) |
| Os to Cervia | 1,139.57 mi (1,833.97 km) |
