| North Potomac to Oststeinbek | 4,015.88 mi (6,462.94 km) |
| North Potomac to Ottendorf-Okrilla | 4,226.09 mi (6,801.23 km) |
| North Potomac to Ottersberg | 3,989.95 mi (6,421.20 km) |
| North Potomac to Ottobrunn | 4,240.72 mi (6,824.77 km) |
| North Potomac to Ottweiler | 4,017.05 mi (6,464.82 km) |
| North Potomac to Overath | 3,977.65 mi (6,401.41 km) |
| North Potomac to Oyten | 3,986.00 mi (6,414.84 km) |
| North Potomac to Paderborn | 4,013.44 mi (6,459.02 km) |
| North Potomac to Papenburg | 3,924.05 mi (6,315.15 km) |
| North Potomac to Parchim | 4,081.85 mi (6,569.10 km) |
| North Potomac to Pasewalk | 4,159.50 mi (6,694.07 km) |
| North Potomac to Passau | 4,296.86 mi (6,915.12 km) |
| North Potomac to Pattensen | 4,037.04 mi (6,496.99 km) |
| North Potomac to Pegnitz | 4,182.04 mi (6,730.35 km) |
| North Potomac to Peine | 4,053.42 mi (6,523.35 km) |
