| Grimbergen to Sangeorz-Bai | 946.32 mi (1,522.95 km) |
| Grimbergen to Sannicolau Mare | 813.41 mi (1,309.05 km) |
| Grimbergen to Santana | 840.72 mi (1,353.00 km) |
| Grimbergen to Satu Mare | 858.10 mi (1,380.98 km) |
| Grimbergen to Scobinti | 1,043.56 mi (1,679.44 km) |
| Grimbergen to Scornicesti | 1,030.44 mi (1,658.33 km) |
| Grimbergen to Sebes | 940.70 mi (1,513.92 km) |
| Grimbergen to Seini | 876.25 mi (1,410.18 km) |
| Grimbergen to Sfantu-Gheorghe | 1,038.04 mi (1,670.56 km) |
| Grimbergen to Sibiu | 970.82 mi (1,562.38 km) |
| Grimbergen to Sighetu Marmatiei | 898.02 mi (1,445.23 km) |
| Grimbergen to Sighisoara | 984.37 mi (1,584.20 km) |
| Grimbergen to Simeria | 920.76 mi (1,481.82 km) |
| Grimbergen to Sinaia | 1,044.86 mi (1,681.53 km) |
| Grimbergen to Slatina | 1,027.97 mi (1,654.36 km) |
