| Boulder City to Roeselare | 5,362.54 mi (8,630.17 km) |
| Boulder City to Ronse | 5,386.91 mi (8,669.40 km) |
| Boulder City to Rotselaar | 5,412.40 mi (8,710.42 km) |
| Boulder City to Rumst | 5,396.86 mi (8,685.40 km) |
| Boulder City to Saint-Ghislain | 5,408.06 mi (8,703.42 km) |
| Boulder City to Saint-Nicolas | 5,453.45 mi (8,776.48 km) |
| Boulder City to Saint-Vith | 5,489.22 mi (8,834.04 km) |
| Boulder City to Scherpenheuvel | 5,417.75 mi (8,719.02 km) |
| Boulder City to Schilde | 5,394.37 mi (8,681.41 km) |
| Boulder City to Schoten | 5,391.49 mi (8,676.77 km) |
| Boulder City to Seneffe | 5,417.88 mi (8,719.24 km) |
| Boulder City to Seraing | 5,454.84 mi (8,778.71 km) |
| Boulder City to Sint-Amandsberg | 5,377.25 mi (8,653.85 km) |
| Boulder City to Sint-Andries | 5,352.44 mi (8,613.92 km) |
| Boulder City to Sint-Genesius-Rode | 5,410.82 mi (8,707.87 km) |
