| Gahanna to Castle Pines (Colorado) | 1,166.82 mi (1,877.82 km) |
| Gahanna to Castle Rock (Colorado) | 1,166.87 mi (1,877.89 km) |
| Gahanna to Castro Valley (California) | 2,097.82 mi (3,376.12 km) |
| Gahanna to Catalina Foothills (Arizona) | 1,643.36 mi (2,644.73 km) |
| Gahanna to Cataño (Puerto Rico) | 1,793.26 mi (2,885.97 km) |
| Gahanna to Cathedral City (California) | 1,892.47 mi (3,045.63 km) |
| Gahanna to Catonsville (Maryland) | 329.81 mi (530.78 km) |
| Gahanna to Cave Spring (Virginia) | 247.34 mi (398.06 km) |
| Gahanna to Cayce (South Carolina) | 431.86 mi (695.00 km) |
| Gahanna to Cayey (Puerto Rico) | 1,811.93 mi (2,916.01 km) |
| Gahanna to Cedar City (Utah) | 1,626.85 mi (2,618.15 km) |
| Gahanna to Cedar Falls (Iowa) | 526.61 mi (847.50 km) |
| Gahanna to Cedar Hill (Texas) | 936.58 mi (1,507.28 km) |
| Gahanna to Cedar Lake (Indiana) | 257.00 mi (413.60 km) |
| Gahanna to Cedar Mill (Oregon) | 2,038.97 mi (3,281.41 km) |
