| Grenchen to Karditsa | 906.27 mi (1,458.50 km) |
| Grenchen to Kastoria | 828.89 mi (1,333.97 km) |
| Grenchen to Katerini | 890.70 mi (1,433.45 km) |
| Grenchen to Keratsini | 1,039.18 mi (1,672.39 km) |
| Grenchen to Kerkyra | 815.92 mi (1,313.10 km) |
| Grenchen to Kiato | 1,002.87 mi (1,613.96 km) |
| Grenchen to Kifisia | 1,041.72 mi (1,676.48 km) |
| Grenchen to Kilkis | 877.20 mi (1,411.71 km) |
| Grenchen to Komotini | 984.50 mi (1,584.40 km) |
| Grenchen to Korinthos | 1,013.27 mi (1,630.70 km) |
| Grenchen to Koropi | 1,052.56 mi (1,693.93 km) |
| Grenchen to Korydallos | 1,039.72 mi (1,673.27 km) |
| Grenchen to Kos | 1,238.10 mi (1,992.53 km) |
| Grenchen to Kozani | 859.49 mi (1,383.22 km) |
| Grenchen to Lagos | 968.33 mi (1,558.37 km) |
