| Norristown to Oststeinbek | 3,894.35 mi (6,267.35 km) |
| Norristown to Ottendorf-Okrilla | 4,104.08 mi (6,604.87 km) |
| Norristown to Ottersberg | 3,868.13 mi (6,225.15 km) |
| Norristown to Ottobrunn | 4,117.71 mi (6,626.82 km) |
| Norristown to Ottweiler | 3,894.02 mi (6,266.81 km) |
| Norristown to Overath | 3,854.98 mi (6,204.00 km) |
| Norristown to Oyten | 3,864.15 mi (6,218.75 km) |
| Norristown to Paderborn | 3,891.11 mi (6,262.14 km) |
| Norristown to Papenburg | 3,802.06 mi (6,118.82 km) |
| Norristown to Parchim | 3,960.44 mi (6,373.72 km) |
| Norristown to Pasewalk | 4,038.40 mi (6,499.17 km) |
| Norristown to Passau | 4,174.09 mi (6,717.54 km) |
| Norristown to Pattensen | 3,914.98 mi (6,300.55 km) |
| Norristown to Pegnitz | 4,059.40 mi (6,532.97 km) |
| Norristown to Peine | 3,931.43 mi (6,327.02 km) |
