| Gahanna to Jeffersonville (Indiana) | 191.59 mi (308.33 km) |
| Gahanna to Jenison (Michigan) | 251.29 mi (404.42 km) |
| Gahanna to Jenks (Oklahoma) | 765.05 mi (1,231.23 km) |
| Gahanna to Jennings (Missouri) | 405.25 mi (652.19 km) |
| Gahanna to Jensen Beach (Florida) | 895.77 mi (1,441.60 km) |
| Gahanna to Jericho (New York) | 493.04 mi (793.47 km) |
| Gahanna to Jerome (Idaho) | 1,641.99 mi (2,642.53 km) |
| Gahanna to Jersey City (New Jersey) | 465.24 mi (748.73 km) |
| Gahanna to Jessup (Maryland) | 329.63 mi (530.48 km) |
| Gahanna to Johns Creek (Georgia) | 420.51 mi (676.75 km) |
| Gahanna to Johnson City (New York) | 387.44 mi (623.53 km) |
| Gahanna to Johnson City (Tennessee) | 255.92 mi (411.87 km) |
| Gahanna to Johnston (Iowa) | 578.64 mi (931.22 km) |
| Gahanna to Johnstown (Colorado) | 1,162.87 mi (1,871.45 km) |
| Gahanna to Johnstown (Pennsylvania) | 209.25 mi (336.75 km) |
