| Romanshorn to Dobrova | 260.90 mi (419.87 km) |
| Romanshorn to Dobrovnik | 334.65 mi (538.56 km) |
| Romanshorn to Dobrovo | 225.06 mi (362.20 km) |
| Romanshorn to Dol | 269.81 mi (434.22 km) |
| Romanshorn to Dolenjske Toplice | 297.79 mi (479.24 km) |
| Romanshorn to Domzale | 266.31 mi (428.58 km) |
| Romanshorn to Dornava | 320.27 mi (515.43 km) |
| Romanshorn to Dragomer | 260.53 mi (419.28 km) |
| Romanshorn to Dravograd | 274.94 mi (442.47 km) |
| Romanshorn to Gorenja Vas | 247.66 mi (398.56 km) |
| Romanshorn to Gorisnica | 323.56 mi (520.72 km) |
| Romanshorn to Gornja Radgona | 317.88 mi (511.58 km) |
| Romanshorn to Gornji Grad | 271.53 mi (436.98 km) |
| Romanshorn to Gornji Petrovci | 326.30 mi (525.12 km) |
| Romanshorn to Grad | 320.90 mi (516.44 km) |
