| Calasparra to Nuth | 951.46 mi (1,531.22 km) |
| Calasparra to Oegstgeest | 1,008.78 mi (1,623.47 km) |
| Calasparra to Oirschot | 977.71 mi (1,573.47 km) |
| Calasparra to Oisterwijk | 981.35 mi (1,579.32 km) |
| Calasparra to Oldebroek | 1,048.10 mi (1,686.75 km) |
| Calasparra to Oldenzaal | 1,058.14 mi (1,702.90 km) |
| Calasparra to Ommen | 1,061.18 mi (1,707.80 km) |
| Calasparra to Oosterend | 1,085.99 mi (1,747.74 km) |
| Calasparra to Oosterhout | 979.65 mi (1,576.59 km) |
| Calasparra to Oosterwolde | 1,088.86 mi (1,752.36 km) |
| Calasparra to Oostzaan | 1,031.03 mi (1,659.29 km) |
| Calasparra to Opmeer | 1,049.28 mi (1,688.65 km) |
| Calasparra to Oss | 998.31 mi (1,606.62 km) |
| Calasparra to Oud-Beijerland | 983.97 mi (1,583.55 km) |
| Calasparra to Oudenbosch | 971.05 mi (1,562.76 km) |
