| Maardu to Oestrich-Winkel | 938.04 mi (1,509.64 km) |
| Maardu to Offenburg | 1,023.99 mi (1,647.95 km) |
| Maardu to Oftersheim | 956.15 mi (1,538.77 km) |
| Maardu to Ohrdruf | 818.36 mi (1,317.02 km) |
| Maardu to Ohringen | 941.38 mi (1,515.01 km) |
| Maardu to Olbernhau | 762.05 mi (1,226.41 km) |
| Maardu to Olching | 954.73 mi (1,536.49 km) |
| Maardu to Oldenburg | 775.16 mi (1,247.50 km) |
| Maardu to Oldenburg in Holstein | 640.28 mi (1,030.44 km) |
| Maardu to Olfen | 868.05 mi (1,396.98 km) |
| Maardu to Olpe | 889.64 mi (1,431.73 km) |
| Maardu to Olsberg | 853.65 mi (1,373.81 km) |
| Maardu to Oranienburg | 647.60 mi (1,042.22 km) |
| Maardu to Ortenberg | 889.53 mi (1,431.57 km) |
| Maardu to Oschatz | 731.06 mi (1,176.53 km) |
