| Boulder City to Radauti | 6,170.28 mi (9,930.11 km) |
| Boulder City to Ramnicu Sarat | 6,344.44 mi (10,210.40 km) |
| Boulder City to Ramnicu Valcea | 6,293.60 mi (10,128.58 km) |
| Boulder City to Rasnov | 6,292.37 mi (10,126.59 km) |
| Boulder City to Reghin | 6,203.89 mi (9,984.19 km) |
| Boulder City to Resita | 6,216.63 mi (10,004.71 km) |
| Boulder City to Roman | 6,248.59 mi (10,056.13 km) |
| Boulder City to Rosiori de Vede | 6,367.98 mi (10,248.28 km) |
| Boulder City to Rovinari | 6,273.10 mi (10,095.58 km) |
| Boulder City to Roznov | 6,244.29 mi (10,049.21 km) |
| Boulder City to Sabaoani | 6,241.52 mi (10,044.75 km) |
| Boulder City to Sacele | 6,297.00 mi (10,134.05 km) |
| Boulder City to Sacueni | 6,103.94 mi (9,823.35 km) |
| Boulder City to Salcea | 6,192.40 mi (9,965.70 km) |
| Boulder City to Salonta | 6,124.16 mi (9,855.89 km) |
