| Gahanna to Redon | 3,875.07 mi (6,236.33 km) |
| Gahanna to Reims | 4,079.73 mi (6,565.69 km) |
| Gahanna to Rennes | 3,878.98 mi (6,242.62 km) |
| Gahanna to Revel | 4,181.70 mi (6,729.80 km) |
| Gahanna to Reze | 3,910.22 mi (6,292.89 km) |
| Gahanna to Riedisheim | 4,263.60 mi (6,861.61 km) |
| Gahanna to Rillieux-la-Pape | 4,227.09 mi (6,802.84 km) |
| Gahanna to Riom | 4,149.29 mi (6,677.64 km) |
| Gahanna to Riorges | 4,183.61 mi (6,732.86 km) |
| Gahanna to Ris-Orangis | 4,032.94 mi (6,490.39 km) |
| Gahanna to Rive-de-Gier | 4,225.05 mi (6,799.56 km) |
| Gahanna to Rivesaltes | 4,243.24 mi (6,828.84 km) |
| Gahanna to Rixheim | 4,265.11 mi (6,864.03 km) |
| Gahanna to Roanne | 4,185.00 mi (6,735.11 km) |
| Gahanna to Roche-la-Moliere | 4,215.84 mi (6,784.73 km) |
