| Sterling to Oerlinghausen | 4,013.84 mi (6,459.65 km) |
| Sterling to Oestrich-Winkel | 4,043.54 mi (6,507.45 km) |
| Sterling to Offenburg | 4,085.82 mi (6,575.50 km) |
| Sterling to Oftersheim | 4,085.65 mi (6,575.22 km) |
| Sterling to Ohrdruf | 4,127.80 mi (6,643.05 km) |
| Sterling to Ohringen | 4,127.93 mi (6,643.26 km) |
| Sterling to Olbernhau | 4,234.31 mi (6,814.46 km) |
| Sterling to Olching | 4,233.04 mi (6,812.42 km) |
| Sterling to Oldenburg | 3,963.89 mi (6,379.27 km) |
| Sterling to Oldenburg in Holstein | 4,031.90 mi (6,488.72 km) |
| Sterling to Olfen | 3,970.62 mi (6,390.10 km) |
| Sterling to Olpe | 4,007.85 mi (6,450.01 km) |
| Sterling to Olsberg | 4,024.11 mi (6,476.17 km) |
| Sterling to Oranienburg | 4,164.97 mi (6,702.87 km) |
| Sterling to Ortenberg | 4,075.50 mi (6,558.89 km) |
