| Radolfzell am Bodensee to Zottegem | 317.76 mi (511.39 km) |
| Radolfzell am Bodensee to Zulte | 332.21 mi (534.64 km) |
| Radolfzell am Bodensee to Zwevegem | 330.60 mi (532.06 km) |
| Radolfzell am Bodensee to Zwijndrecht | 317.99 mi (511.75 km) |
| Radolfzell am Bodensee to Asenovgrad | 870.72 mi (1,401.28 km) |
| Radolfzell am Bodensee to Aytos | 952.55 mi (1,532.99 km) |
| Radolfzell am Bodensee to Balchik | 971.80 mi (1,563.96 km) |
| Radolfzell am Bodensee to Bankya | 770.65 mi (1,240.24 km) |
| Radolfzell am Bodensee to Bansko | 818.48 mi (1,317.22 km) |
| Radolfzell am Bodensee to Berkovitsa | 751.21 mi (1,208.96 km) |
| Radolfzell am Bodensee to Blagoevgrad | 794.79 mi (1,279.10 km) |
| Radolfzell am Bodensee to Botevgrad | 792.05 mi (1,274.69 km) |
| Radolfzell am Bodensee to Burgas | 968.83 mi (1,559.18 km) |
| Radolfzell am Bodensee to Byala Slatina | 779.65 mi (1,254.73 km) |
| Radolfzell am Bodensee to Chirpan | 883.99 mi (1,422.65 km) |
