| Grenchen to Lapua | 1,245.40 mi (2,004.28 km) |
| Grenchen to Laukaa | 1,275.49 mi (2,052.70 km) |
| Grenchen to Lauritsala | 1,266.67 mi (2,038.51 km) |
| Grenchen to Lempaala | 1,171.06 mi (1,884.64 km) |
| Grenchen to Leppavirta | 1,320.47 mi (2,125.09 km) |
| Grenchen to Lieksa | 1,410.69 mi (2,270.28 km) |
| Grenchen to Lieto | 1,099.79 mi (1,769.93 km) |
| Grenchen to Liminka | 1,390.91 mi (2,238.46 km) |
| Grenchen to Liperi | 1,360.04 mi (2,188.77 km) |
| Grenchen to Lohja | 1,123.98 mi (1,808.87 km) |
| Grenchen to Loimaa | 1,131.55 mi (1,821.05 km) |
| Grenchen to Loviisa | 1,187.27 mi (1,910.73 km) |
| Grenchen to Mantsala | 1,172.81 mi (1,887.45 km) |
| Grenchen to Mariehamn | 1,025.30 mi (1,650.07 km) |
| Grenchen to Masku | 1,095.98 mi (1,763.81 km) |
