| Piqua to Cavdir | 5,653.30 mi (9,098.10 km) |
| Piqua to Cay | 5,633.67 mi (9,066.51 km) |
| Piqua to Caybasi | 5,728.68 mi (9,219.42 km) |
| Piqua to Caycuma | 5,531.96 mi (8,902.83 km) |
| Piqua to Cayeli | 5,847.28 mi (9,410.29 km) |
| Piqua to Cayiralan | 5,767.22 mi (9,281.45 km) |
| Piqua to Cayirhan | 5,583.49 mi (8,985.76 km) |
| Piqua to Cayirli | 5,893.18 mi (9,484.16 km) |
| Piqua to Cayirova | 5,462.34 mi (8,790.79 km) |
| Piqua to Caykara | 5,849.68 mi (9,414.14 km) |
| Piqua to Cekerek | 5,722.41 mi (9,209.33 km) |
| Piqua to Cekme | 5,444.86 mi (8,762.66 km) |
| Piqua to Celtik | 5,640.88 mi (9,078.12 km) |
| Piqua to Cerkes | 5,591.88 mi (8,999.26 km) |
| Piqua to Cerkezkoy | 5,388.94 mi (8,672.66 km) |
