| Watertown to Oststeinbek | 3,731.35 mi (6,005.03 km) |
| Watertown to Ottendorf-Okrilla | 3,945.87 mi (6,350.27 km) |
| Watertown to Ottersberg | 3,708.14 mi (5,967.68 km) |
| Watertown to Ottobrunn | 3,974.91 mi (6,397.00 km) |
| Watertown to Ottweiler | 3,752.38 mi (6,038.88 km) |
| Watertown to Overath | 3,706.35 mi (5,964.80 km) |
| Watertown to Oyten | 3,704.48 mi (5,961.79 km) |
| Watertown to Paderborn | 3,737.37 mi (6,014.71 km) |
| Watertown to Papenburg | 3,644.24 mi (5,864.84 km) |
| Watertown to Parchim | 3,796.01 mi (6,109.08 km) |
| Watertown to Pasewalk | 3,871.03 mi (6,229.83 km) |
| Watertown to Passau | 4,026.53 mi (6,480.08 km) |
| Watertown to Pattensen | 3,757.69 mi (6,047.42 km) |
| Watertown to Pegnitz | 3,909.97 mi (6,292.49 km) |
| Watertown to Peine | 3,773.34 mi (6,072.61 km) |
