| River Grove to Oststeinbek | 4,255.18 mi (6,848.04 km) |
| River Grove to Ottendorf-Okrilla | 4,475.13 mi (7,202.02 km) |
| River Grove to Ottersberg | 4,236.61 mi (6,818.17 km) |
| River Grove to Ottobrunn | 4,524.50 mi (7,281.48 km) |
| River Grove to Ottweiler | 4,304.77 mi (6,927.85 km) |
| River Grove to Overath | 4,250.38 mi (6,840.33 km) |
| River Grove to Oyten | 4,233.44 mi (6,813.07 km) |
| River Grove to Paderborn | 4,274.41 mi (6,879.00 km) |
| River Grove to Papenburg | 4,176.34 mi (6,721.17 km) |
| River Grove to Parchim | 4,317.11 mi (6,947.71 km) |
| River Grove to Pasewalk | 4,386.95 mi (7,060.11 km) |
| River Grove to Passau | 4,569.82 mi (7,354.42 km) |
| River Grove to Pattensen | 4,289.66 mi (6,903.55 km) |
| River Grove to Pegnitz | 4,451.58 mi (7,164.13 km) |
| River Grove to Peine | 4,304.06 mi (6,926.71 km) |
