| Nieuwkoop to Siran | 1,817.57 mi (2,925.09 km) |
| Nieuwkoop to Sirnak | 2,073.47 mi (3,336.92 km) |
| Nieuwkoop to Sirvan | 2,031.02 mi (3,268.62 km) |
| Nieuwkoop to Sivas | 1,750.47 mi (2,817.11 km) |
| Nieuwkoop to Sivasli | 1,523.31 mi (2,451.53 km) |
| Nieuwkoop to Siverek | 1,934.72 mi (3,113.63 km) |
| Nieuwkoop to Sivrice | 1,902.48 mi (3,061.75 km) |
| Nieuwkoop to Sivrihisar | 1,546.52 mi (2,488.88 km) |
| Nieuwkoop to Sogut | 1,467.18 mi (2,361.20 km) |
| Nieuwkoop to Sogutlu | 1,437.78 mi (2,313.88 km) |
| Nieuwkoop to Soke | 1,478.41 mi (2,379.28 km) |
| Nieuwkoop to Solhan | 1,950.42 mi (3,138.89 km) |
| Nieuwkoop to Soma | 1,411.33 mi (2,271.31 km) |
| Nieuwkoop to Sorgun | 1,673.80 mi (2,693.73 km) |
| Nieuwkoop to Suhut | 1,553.23 mi (2,499.69 km) |
