| Altenholz to Novi di Modena | 657.73 mi (1,058.51 km) |
| Altenholz to Novi Ligure | 668.81 mi (1,076.35 km) |
| Altenholz to Nuoro | 973.77 mi (1,567.12 km) |
| Altenholz to Occhiobello | 658.05 mi (1,059.03 km) |
| Altenholz to Oderzo | 604.55 mi (972.93 km) |
| Altenholz to Oggiono | 596.36 mi (959.75 km) |
| Altenholz to Olbia | 932.06 mi (1,500.01 km) |
| Altenholz to Oleggio | 611.62 mi (984.31 km) |
| Altenholz to Olgiate Comasco | 597.58 mi (961.70 km) |
| Altenholz to Olgiate Olona | 608.23 mi (978.85 km) |
| Altenholz to Omegna | 593.70 mi (955.47 km) |
| Altenholz to Opera | 624.31 mi (1,004.74 km) |
| Altenholz to Oppeano | 630.47 mi (1,014.64 km) |
| Altenholz to Orbassano | 659.14 mi (1,060.79 km) |
| Altenholz to Orbetello | 827.85 mi (1,332.30 km) |
