| Gahanna to Casamassima | 4,915.31 mi (7,910.42 km) |
| Gahanna to Casandrino | 4,804.05 mi (7,731.37 km) |
| Gahanna to Casapulla | 4,800.07 mi (7,724.96 km) |
| Gahanna to Casarano | 5,006.69 mi (8,057.48 km) |
| Gahanna to Casatenovo | 4,414.95 mi (7,105.18 km) |
| Gahanna to Casciana Terme | 4,549.49 mi (7,321.70 km) |
| Gahanna to Cascina | 4,540.74 mi (7,307.62 km) |
| Gahanna to Caselle Torinese | 4,364.57 mi (7,024.09 km) |
| Gahanna to Caserta | 4,802.18 mi (7,728.36 km) |
| Gahanna to Casier | 4,538.59 mi (7,304.15 km) |
| Gahanna to Casorate Primo | 4,416.58 mi (7,107.80 km) |
| Gahanna to Casoria | 4,807.51 mi (7,736.94 km) |
| Gahanna to Cassano al Ionio | 4,938.77 mi (7,948.19 km) |
| Gahanna to Cassano d'Adda | 4,429.37 mi (7,128.38 km) |
| Gahanna to Cassano delle Murge | 4,911.84 mi (7,904.84 km) |
