| Nidderau to Oestrich-Winkel | 43.45 mi (69.92 km) |
| Nidderau to Offenburg | 130.67 mi (210.29 km) |
| Nidderau to Oftersheim | 62.37 mi (100.37 km) |
| Nidderau to Ohrdruf | 89.85 mi (144.59 km) |
| Nidderau to Ohringen | 77.34 mi (124.47 km) |
| Nidderau to Olbernhau | 197.09 mi (317.19 km) |
| Nidderau to Olching | 178.74 mi (287.65 km) |
| Nidderau to Oldenburg | 202.09 mi (325.24 km) |
| Nidderau to Oldenburg in Holstein | 292.09 mi (470.07 km) |
| Nidderau to Olfen | 120.92 mi (194.59 km) |
| Nidderau to Olpe | 70.65 mi (113.70 km) |
| Nidderau to Olsberg | 78.15 mi (125.77 km) |
| Nidderau to Oranienburg | 254.35 mi (409.33 km) |
| Nidderau to Ortenberg | 10.02 mi (16.13 km) |
| Nidderau to Oschatz | 197.59 mi (317.99 km) |
