| Mulheim to Smolyan | 1,081.61 mi (1,740.68 km) |
| Mulheim to Sofia | 977.48 mi (1,573.11 km) |
| Mulheim to Sopot | 1,032.66 mi (1,661.91 km) |
| Mulheim to Sozopol | 1,156.80 mi (1,861.69 km) |
| Mulheim to Sredets | 1,140.23 mi (1,835.02 km) |
| Mulheim to Stamboliyski | 1,048.89 mi (1,688.03 km) |
| Mulheim to Stara Zagora | 1,076.76 mi (1,732.88 km) |
| Mulheim to Svilengrad | 1,128.60 mi (1,816.31 km) |
| Mulheim to Svishtov | 1,012.41 mi (1,629.31 km) |
| Mulheim to Targovishte | 1,076.58 mi (1,732.58 km) |
| Mulheim to Teteven | 1,002.12 mi (1,612.75 km) |
| Mulheim to Troyan | 1,020.65 mi (1,642.58 km) |
| Mulheim to Tryavna | 1,051.29 mi (1,691.89 km) |
| Mulheim to Tutrakan | 1,044.38 mi (1,680.76 km) |
| Mulheim to Varna | 1,130.92 mi (1,820.04 km) |
