| Diamond Springs to Oerlinghausen | 5,475.88 mi (8,812.58 km) |
| Diamond Springs to Oestrich-Winkel | 5,565.24 mi (8,956.40 km) |
| Diamond Springs to Offenburg | 5,646.88 mi (9,087.78 km) |
| Diamond Springs to Oftersheim | 5,615.62 mi (9,037.47 km) |
| Diamond Springs to Ohrdruf | 5,592.31 mi (8,999.95 km) |
| Diamond Springs to Ohringen | 5,649.98 mi (9,092.77 km) |
| Diamond Springs to Olbernhau | 5,667.16 mi (9,120.41 km) |
| Diamond Springs to Olching | 5,754.70 mi (9,261.30 km) |
| Diamond Springs to Oldenburg | 5,400.10 mi (8,690.61 km) |
| Diamond Springs to Oldenburg in Holstein | 5,402.92 mi (8,695.16 km) |
| Diamond Springs to Olfen | 5,455.54 mi (8,779.84 km) |
| Diamond Springs to Olpe | 5,505.48 mi (8,860.22 km) |
| Diamond Springs to Olsberg | 5,504.71 mi (8,858.98 km) |
| Diamond Springs to Oranienburg | 5,546.01 mi (8,925.44 km) |
| Diamond Springs to Ortenberg | 5,574.35 mi (8,971.06 km) |
