| Clausthal-Zellerfeld to Ottendorf-Okrilla | 156.24 mi (251.45 km) |
| Clausthal-Zellerfeld to Ottersberg | 102.46 mi (164.89 km) |
| Clausthal-Zellerfeld to Ottobrunn | 264.98 mi (426.44 km) |
| Clausthal-Zellerfeld to Ottweiler | 218.38 mi (351.44 km) |
| Clausthal-Zellerfeld to Overath | 143.61 mi (231.12 km) |
| Clausthal-Zellerfeld to Oyten | 103.02 mi (165.79 km) |
| Clausthal-Zellerfeld to Paderborn | 67.89 mi (109.26 km) |
| Clausthal-Zellerfeld to Papenburg | 151.28 mi (243.45 km) |
| Clausthal-Zellerfeld to Parchim | 127.86 mi (205.76 km) |
| Clausthal-Zellerfeld to Pasewalk | 193.11 mi (310.78 km) |
| Clausthal-Zellerfeld to Passau | 262.59 mi (422.60 km) |
| Clausthal-Zellerfeld to Pattensen | 40.03 mi (64.42 km) |
| Clausthal-Zellerfeld to Pegnitz | 151.08 mi (243.14 km) |
| Clausthal-Zellerfeld to Peine | 35.87 mi (57.72 km) |
| Clausthal-Zellerfeld to Peissenberg | 278.94 mi (448.91 km) |
