| Piqua to Cernavoda | 5,245.07 mi (8,441.12 km) |
| Piqua to Chitila | 5,162.56 mi (8,308.34 km) |
| Piqua to Cisnadie | 5,040.56 mi (8,111.99 km) |
| Piqua to Cluj-Napoca | 4,972.73 mi (8,002.84 km) |
| Piqua to Codlea | 5,088.35 mi (8,188.90 km) |
| Piqua to Comanesti | 5,090.77 mi (8,192.81 km) |
| Piqua to Comarnic | 5,115.70 mi (8,232.93 km) |
| Piqua to Constanta | 5,274.78 mi (8,488.93 km) |
| Piqua to Corabia | 5,141.48 mi (8,274.41 km) |
| Piqua to Costesti | 5,114.63 mi (8,231.20 km) |
| Piqua to Covasna | 5,108.07 mi (8,220.65 km) |
| Piqua to Craiova | 5,090.37 mi (8,192.16 km) |
| Piqua to Cristuru Secuiesc | 5,046.51 mi (8,121.57 km) |
| Piqua to Cugir | 5,005.82 mi (8,056.08 km) |
| Piqua to Cumpana | 5,274.56 mi (8,488.58 km) |
