| Placerville to Oerlinghausen | 5,472.46 mi (8,807.07 km) |
| Placerville to Oestrich-Winkel | 5,561.81 mi (8,950.86 km) |
| Placerville to Offenburg | 5,643.43 mi (9,082.23 km) |
| Placerville to Oftersheim | 5,612.19 mi (9,031.94 km) |
| Placerville to Ohrdruf | 5,588.89 mi (8,994.46 km) |
| Placerville to Ohringen | 5,646.55 mi (9,087.24 km) |
| Placerville to Olbernhau | 5,663.76 mi (9,114.94 km) |
| Placerville to Olching | 5,751.27 mi (9,255.78 km) |
| Placerville to Oldenburg | 5,396.68 mi (8,685.12 km) |
| Placerville to Oldenburg in Holstein | 5,399.53 mi (8,689.71 km) |
| Placerville to Olfen | 5,452.11 mi (8,774.32 km) |
| Placerville to Olpe | 5,502.05 mi (8,854.70 km) |
| Placerville to Olsberg | 5,501.28 mi (8,853.46 km) |
| Placerville to Oranienburg | 5,542.62 mi (8,919.99 km) |
| Placerville to Ortenberg | 5,570.92 mi (8,965.54 km) |
