| Upper Arlington to Cernavoda | 5,208.71 mi (8,382.62 km) |
| Upper Arlington to Chitila | 5,125.42 mi (8,248.56 km) |
| Upper Arlington to Cisnadie | 5,003.47 mi (8,052.31 km) |
| Upper Arlington to Cluj-Napoca | 4,936.17 mi (7,943.99 km) |
| Upper Arlington to Codlea | 5,051.79 mi (8,130.08 km) |
| Upper Arlington to Comanesti | 5,055.17 mi (8,135.50 km) |
| Upper Arlington to Comarnic | 5,078.92 mi (8,173.74 km) |
| Upper Arlington to Constanta | 5,238.58 mi (8,430.67 km) |
| Upper Arlington to Corabia | 5,103.20 mi (8,212.81 km) |
| Upper Arlington to Costesti | 5,077.13 mi (8,170.84 km) |
| Upper Arlington to Covasna | 5,071.95 mi (8,162.51 km) |
| Upper Arlington to Craiova | 5,052.19 mi (8,130.71 km) |
| Upper Arlington to Cristuru Secuiesc | 5,010.21 mi (8,063.15 km) |
| Upper Arlington to Cugir | 4,968.50 mi (7,996.03 km) |
| Upper Arlington to Cumpana | 5,238.28 mi (8,430.20 km) |
