| Romanshorn to Zottegem | 338.91 mi (545.43 km) |
| Romanshorn to Zulte | 353.45 mi (568.83 km) |
| Romanshorn to Zwevegem | 351.95 mi (566.40 km) |
| Romanshorn to Zwijndrecht | 338.58 mi (544.90 km) |
| Romanshorn to Asenovgrad | 849.57 mi (1,367.25 km) |
| Romanshorn to Aytos | 932.04 mi (1,499.98 km) |
| Romanshorn to Balchik | 951.81 mi (1,531.78 km) |
| Romanshorn to Bankya | 749.47 mi (1,206.15 km) |
| Romanshorn to Bansko | 797.11 mi (1,282.82 km) |
| Romanshorn to Berkovitsa | 730.23 mi (1,175.19 km) |
| Romanshorn to Blagoevgrad | 773.41 mi (1,244.69 km) |
| Romanshorn to Botevgrad | 771.05 mi (1,240.88 km) |
| Romanshorn to Burgas | 948.27 mi (1,526.09 km) |
| Romanshorn to Byala Slatina | 758.92 mi (1,221.36 km) |
| Romanshorn to Chirpan | 862.97 mi (1,388.82 km) |
