| Foster City to Oerlinghausen | 5,581.92 mi (8,983.23 km) |
| Foster City to Oestrich-Winkel | 5,672.08 mi (9,128.33 km) |
| Foster City to Offenburg | 5,754.17 mi (9,260.45 km) |
| Foster City to Oftersheim | 5,722.50 mi (9,209.47 km) |
| Foster City to Ohrdruf | 5,698.16 mi (9,170.30 km) |
| Foster City to Ohringen | 5,756.68 mi (9,264.47 km) |
| Foster City to Olbernhau | 5,772.29 mi (9,289.61 km) |
| Foster City to Olching | 5,861.20 mi (9,432.70 km) |
| Foster City to Oldenburg | 5,505.86 mi (8,860.82 km) |
| Foster City to Oldenburg in Holstein | 5,507.52 mi (8,863.50 km) |
| Foster City to Olfen | 5,561.99 mi (8,951.17 km) |
| Foster City to Olpe | 5,612.05 mi (9,031.72 km) |
| Foster City to Olsberg | 5,611.00 mi (9,030.04 km) |
| Foster City to Oranienburg | 5,650.45 mi (9,093.53 km) |
| Foster City to Ortenberg | 5,680.81 mi (9,142.38 km) |
