| Grenchen to Rivalta di Torino | 149.12 mi (239.99 km) |
| Grenchen to Rivarolo Canavese | 129.38 mi (208.22 km) |
| Grenchen to Rivoli | 146.65 mi (236.02 km) |
| Grenchen to Rocca di Papa | 457.18 mi (735.75 km) |
| Grenchen to Rocca Priora | 457.63 mi (736.49 km) |
| Grenchen to Roccapiemonte | 573.00 mi (922.16 km) |
| Grenchen to Roccastrada | 342.38 mi (551.00 km) |
| Grenchen to Romano di Lombardia | 161.15 mi (259.34 km) |
| Grenchen to Rome | 443.30 mi (713.43 km) |
| Grenchen to Roncade | 260.71 mi (419.57 km) |
| Grenchen to Ronchi dei Legionari | 304.91 mi (490.70 km) |
| Grenchen to Ronciglione | 412.85 mi (664.42 km) |
| Grenchen to Rosa | 231.57 mi (372.68 km) |
| Grenchen to Rosarno | 741.25 mi (1,192.92 km) |
| Grenchen to Rosignano Marittimo | 301.38 mi (485.02 km) |
