| Bals to Nuth | 958.26 mi (1,542.17 km) |
| Bals to Oegstgeest | 1,047.74 mi (1,686.18 km) |
| Bals to Oirschot | 996.65 mi (1,603.95 km) |
| Bals to Oisterwijk | 1,002.81 mi (1,613.87 km) |
| Bals to Oldebroek | 1,000.67 mi (1,610.42 km) |
| Bals to Oldenzaal | 957.76 mi (1,541.37 km) |
| Bals to Ommen | 983.48 mi (1,582.75 km) |
| Bals to Oosterend | 1,012.38 mi (1,629.27 km) |
| Bals to Oosterhout | 1,018.00 mi (1,638.31 km) |
| Bals to Oosterwolde | 1,003.76 mi (1,615.39 km) |
| Bals to Oostzaan | 1,038.72 mi (1,671.66 km) |
| Bals to Opmeer | 1,044.08 mi (1,680.29 km) |
| Bals to Oss | 995.29 mi (1,601.76 km) |
| Bals to Oud-Beijerland | 1,040.62 mi (1,674.72 km) |
| Bals to Oudenbosch | 1,029.89 mi (1,657.45 km) |
