| Guidel to Oestrich-Winkel | 543.10 mi (874.04 km) |
| Guidel to Offenburg | 528.31 mi (850.24 km) |
| Guidel to Oftersheim | 561.91 mi (904.31 km) |
| Guidel to Ohrdruf | 672.87 mi (1,082.88 km) |
| Guidel to Ohringen | 601.85 mi (968.58 km) |
| Guidel to Olbernhau | 782.69 mi (1,259.63 km) |
| Guidel to Olching | 684.07 mi (1,100.91 km) |
| Guidel to Oldenburg | 632.54 mi (1,017.97 km) |
| Guidel to Oldenburg in Holstein | 767.11 mi (1,234.55 km) |
| Guidel to Olfen | 555.18 mi (893.48 km) |
| Guidel to Olpe | 554.95 mi (893.11 km) |
| Guidel to Olsberg | 589.21 mi (948.24 km) |
| Guidel to Oranienburg | 811.81 mi (1,306.48 km) |
| Guidel to Ortenberg | 593.95 mi (955.86 km) |
| Guidel to Oschatz | 780.52 mi (1,256.13 km) |
