| Gahanna to Ratingen | 4,125.89 mi (6,639.98 km) |
| Gahanna to Ratzeburg | 4,192.35 mi (6,746.94 km) |
| Gahanna to Raubling | 4,450.95 mi (7,163.11 km) |
| Gahanna to Rauenberg | 4,264.93 mi (6,863.74 km) |
| Gahanna to Raunheim | 4,229.65 mi (6,806.97 km) |
| Gahanna to Ravensburg | 4,352.48 mi (7,004.64 km) |
| Gahanna to Recke | 4,124.63 mi (6,637.95 km) |
| Gahanna to Recklinghausen | 4,128.69 mi (6,644.49 km) |
| Gahanna to Regen | 4,447.34 mi (7,157.30 km) |
| Gahanna to Regensburg | 4,405.15 mi (7,089.41 km) |
| Gahanna to Regenstauf | 4,403.00 mi (7,085.95 km) |
| Gahanna to Rehau | 4,358.16 mi (7,013.78 km) |
| Gahanna to Rehburg-Loccum | 4,177.44 mi (6,722.94 km) |
| Gahanna to Rehlingen-Siersburg | 4,181.80 mi (6,729.96 km) |
| Gahanna to Reichelsheim | 4,254.99 mi (6,847.75 km) |
