| Zagarolo to Colchester | 892.43 mi (1,436.22 km) |
| Zagarolo to Coleford | 999.71 mi (1,608.88 km) |
| Zagarolo to Colne | 1,079.14 mi (1,736.71 km) |
| Zagarolo to Colwyn Bay | 1,099.75 mi (1,769.88 km) |
| Zagarolo to Congleton | 1,047.55 mi (1,685.87 km) |
| Zagarolo to Conisbrough | 1,033.27 mi (1,662.89 km) |
| Zagarolo to Connahs Quay | 1,076.19 mi (1,731.95 km) |
| Zagarolo to Consett | 1,118.75 mi (1,800.45 km) |
| Zagarolo to Conwy | 1,103.48 mi (1,775.88 km) |
| Zagarolo to Cookstown | 1,254.97 mi (2,019.68 km) |
| Zagarolo to Corby | 969.52 mi (1,560.29 km) |
| Zagarolo to Corfe Mullen | 936.99 mi (1,507.94 km) |
| Zagarolo to Corsham | 970.04 mi (1,561.14 km) |
| Zagarolo to Coseley | 1,015.30 mi (1,633.97 km) |
| Zagarolo to Cosham | 906.67 mi (1,459.15 km) |
