| Richland to Oerlinghausen | 4,981.61 mi (8,017.13 km) |
| Richland to Oestrich-Winkel | 5,076.36 mi (8,169.61 km) |
| Richland to Offenburg | 5,161.54 mi (8,306.69 km) |
| Richland to Oftersheim | 5,126.99 mi (8,251.09 km) |
| Richland to Ohrdruf | 5,096.73 mi (8,202.39 km) |
| Richland to Ohringen | 5,159.94 mi (8,304.13 km) |
| Richland to Olbernhau | 5,167.41 mi (8,316.14 km) |
| Richland to Olching | 5,263.18 mi (8,470.28 km) |
| Richland to Oldenburg | 4,904.18 mi (7,892.51 km) |
| Richland to Oldenburg in Holstein | 4,900.66 mi (7,886.84 km) |
| Richland to Olfen | 4,964.04 mi (7,988.85 km) |
| Richland to Olpe | 5,014.69 mi (8,070.37 km) |
| Richland to Olsberg | 5,012.04 mi (8,066.10 km) |
| Richland to Oranienburg | 5,042.88 mi (8,115.73 km) |
| Richland to Ortenberg | 5,082.73 mi (8,179.87 km) |
