| Backnang to Serik | 1,367.45 mi (2,200.70 km) |
| Backnang to Serinhisar | 1,263.49 mi (2,033.39 km) |
| Backnang to Serinyol | 1,601.16 mi (2,576.81 km) |
| Backnang to Seydisehir | 1,373.66 mi (2,210.70 km) |
| Backnang to Seyhan | 1,536.95 mi (2,473.48 km) |
| Backnang to Seyitgazi | 1,234.68 mi (1,987.02 km) |
| Backnang to Siirt | 1,782.34 mi (2,868.40 km) |
| Backnang to Sile | 1,116.86 mi (1,797.41 km) |
| Backnang to Silifke | 1,507.02 mi (2,425.31 km) |
| Backnang to Silivri | 1,063.79 mi (1,712.00 km) |
| Backnang to Silopi | 1,833.13 mi (2,950.14 km) |
| Backnang to Simav | 1,181.11 mi (1,900.81 km) |
| Backnang to Sinanpasa | 1,247.44 mi (2,007.56 km) |
| Backnang to Sindirgi | 1,141.63 mi (1,837.27 km) |
| Backnang to Sinop | 1,326.56 mi (2,134.89 km) |
