| Gahanna to Cadillac (Michigan) | 319.78 mi (514.64 km) |
| Gahanna to Caguas (Puerto Rico) | 1,809.01 mi (2,911.32 km) |
| Gahanna to Cahokia (Illinois) | 403.84 mi (649.91 km) |
| Gahanna to Calabasas (California) | 2,001.08 mi (3,220.43 km) |
| Gahanna to Caldwell (Idaho) | 1,745.38 mi (2,808.92 km) |
| Gahanna to Caledonia (Wisconsin) | 322.68 mi (519.31 km) |
| Gahanna to Calera (Alabama) | 522.96 mi (841.62 km) |
| Gahanna to Calexico (California) | 1,873.60 mi (3,015.26 km) |
| Gahanna to Calhoun (Georgia) | 399.00 mi (642.12 km) |
| Gahanna to California (Maryland) | 361.39 mi (581.59 km) |
| Gahanna to California City (California) | 1,933.17 mi (3,111.13 km) |
| Gahanna to Callaway (Florida) | 700.00 mi (1,126.55 km) |
| Gahanna to Calumet City (Illinois) | 268.46 mi (432.05 km) |
| Gahanna to Calverton (Maryland) | 322.10 mi (518.37 km) |
| Gahanna to Camano (Washington) | 2,019.57 mi (3,250.19 km) |
