| Gahanna to Rivalta di Torino | 4,364.30 mi (7,023.66 km) |
| Gahanna to Rivarolo Canavese | 4,362.07 mi (7,020.07 km) |
| Gahanna to Rivoli | 4,363.01 mi (7,021.58 km) |
| Gahanna to Rocca di Papa | 4,705.87 mi (7,573.37 km) |
| Gahanna to Rocca Priora | 4,707.33 mi (7,575.72 km) |
| Gahanna to Roccapiemonte | 4,829.77 mi (7,772.76 km) |
| Gahanna to Roccastrada | 4,592.26 mi (7,390.52 km) |
| Gahanna to Romano di Lombardia | 4,439.57 mi (7,144.80 km) |
| Gahanna to Rome | 4,691.00 mi (7,549.43 km) |
| Gahanna to Roncade | 4,542.64 mi (7,310.68 km) |
| Gahanna to Ronchi dei Legionari | 4,579.86 mi (7,370.58 km) |
| Gahanna to Ronciglione | 4,664.16 mi (7,506.25 km) |
| Gahanna to Rosa | 4,514.49 mi (7,265.37 km) |
| Gahanna to Rosarno | 4,978.66 mi (8,012.37 km) |
| Gahanna to Rosignano Marittimo | 4,547.92 mi (7,319.17 km) |
