| Twinsburg to Cascais | 3,702.10 mi (5,957.95 km) |
| Twinsburg to Castelo Branco | 3,757.63 mi (6,047.32 km) |
| Twinsburg to Castro Daire | 3,703.35 mi (5,959.97 km) |
| Twinsburg to Celorico de Basto | 3,685.42 mi (5,931.10 km) |
| Twinsburg to Chamusca | 3,725.95 mi (5,996.33 km) |
| Twinsburg to Chaves | 3,699.05 mi (5,953.05 km) |
| Twinsburg to Cinfaes | 3,687.86 mi (5,935.04 km) |
| Twinsburg to Coimbra | 3,701.44 mi (5,956.89 km) |
| Twinsburg to Condeixa-a-Nova | 3,701.05 mi (5,956.26 km) |
| Twinsburg to Corroios | 3,717.55 mi (5,982.81 km) |
| Twinsburg to Coruche | 3,736.39 mi (6,013.15 km) |
| Twinsburg to Costa de Caparica | 3,712.53 mi (5,974.74 km) |
| Twinsburg to Covilha | 3,742.86 mi (6,023.56 km) |
| Twinsburg to Eiras | 3,700.72 mi (5,955.74 km) |
| Twinsburg to Elvas | 3,804.76 mi (6,123.17 km) |
