| Grenchen to Glyka Nera | 1,047.26 mi (1,685.40 km) |
| Grenchen to Grevena | 854.26 mi (1,374.80 km) |
| Grenchen to Ialysos | 1,296.01 mi (2,085.73 km) |
| Grenchen to Ilion | 1,039.37 mi (1,672.71 km) |
| Grenchen to Ilioupoli | 1,046.07 mi (1,683.48 km) |
| Grenchen to Ioannina | 850.26 mi (1,368.37 km) |
| Grenchen to Irakleio | 1,227.21 mi (1,975.00 km) |
| Grenchen to Irakleio | 1,041.26 mi (1,675.75 km) |
| Grenchen to Kaisariani | 1,044.75 mi (1,681.37 km) |
| Grenchen to Kalamaria | 896.65 mi (1,443.03 km) |
| Grenchen to Kalamata | 1,026.81 mi (1,652.49 km) |
| Grenchen to Kallithea | 1,043.28 mi (1,679.00 km) |
| Grenchen to Kalymnos | 1,221.42 mi (1,965.68 km) |
| Grenchen to Kalyvia Thorikou | 1,057.43 mi (1,701.77 km) |
| Grenchen to Kamatero | 1,038.62 mi (1,671.49 km) |
