| Balchik to Oberriet | 939.13 mi (1,511.39 km) |
| Balchik to Obersiggenthal | 999.85 mi (1,609.10 km) |
| Balchik to Oberwil | 1,034.16 mi (1,664.33 km) |
| Balchik to Oberwingert | 978.22 mi (1,574.29 km) |
| Balchik to Oftringen | 1,015.49 mi (1,634.28 km) |
| Balchik to Olten | 1,016.59 mi (1,636.04 km) |
| Balchik to Onex | 1,094.46 mi (1,761.36 km) |
| Balchik to Opfikon | 986.60 mi (1,587.78 km) |
| Balchik to Ostermundigen | 1,032.39 mi (1,661.46 km) |
| Balchik to Payerne | 1,057.60 mi (1,702.04 km) |
| Balchik to Pfaffikon | 975.87 mi (1,570.51 km) |
| Balchik to Plan-les-Ouates | 1,093.62 mi (1,760.01 km) |
| Balchik to Pratteln | 1,027.48 mi (1,653.57 km) |
| Balchik to Prilly | 1,071.86 mi (1,724.99 km) |
| Balchik to Pully | 1,068.62 mi (1,719.78 km) |
