| Armthorpe to Oberkirch | 525.58 mi (845.84 km) |
| Armthorpe to Obernburg am Main | 505.12 mi (812.91 km) |
| Armthorpe to Obernkirchen | 432.42 mi (695.92 km) |
| Armthorpe to Oberschleissheim | 658.70 mi (1,060.07 km) |
| Armthorpe to Oberstdorf | 652.42 mi (1,049.98 km) |
| Armthorpe to Obertraubling | 651.64 mi (1,048.71 km) |
| Armthorpe to Obertshausen | 485.02 mi (780.56 km) |
| Armthorpe to Oberursel | 470.35 mi (756.95 km) |
| Armthorpe to Ochsenfurt | 546.72 mi (879.86 km) |
| Armthorpe to Ochsenhausen | 609.76 mi (981.31 km) |
| Armthorpe to Ochtrup | 355.60 mi (572.28 km) |
| Armthorpe to Odenthal | 385.82 mi (620.92 km) |
| Armthorpe to Oelde | 402.64 mi (647.98 km) |
| Armthorpe to Oelsnitz | 601.35 mi (967.78 km) |
| Armthorpe to Oer-Erkenschwick | 371.99 mi (598.66 km) |
