| Boulder City to Racale | 6,407.75 mi (10,312.28 km) |
| Boulder City to Racconigi | 5,813.17 mi (9,355.40 km) |
| Boulder City to Raffadali | 6,395.95 mi (10,293.29 km) |
| Boulder City to Ragusa | 6,463.22 mi (10,401.54 km) |
| Boulder City to Ramacca | 6,437.45 mi (10,360.08 km) |
| Boulder City to Randazzo | 6,419.00 mi (10,330.38 km) |
| Boulder City to Rapallo | 5,886.16 mi (9,472.86 km) |
| Boulder City to Ravanusa | 6,418.44 mi (10,329.48 km) |
| Boulder City to Ravenna | 5,979.54 mi (9,623.14 km) |
| Boulder City to Recanati | 6,076.45 mi (9,779.10 km) |
| Boulder City to Recco | 5,882.54 mi (9,467.03 km) |
| Boulder City to Reggello | 5,996.42 mi (9,650.31 km) |
| Boulder City to Reggio di Calabria | 6,430.09 mi (10,348.23 km) |
| Boulder City to Reggio Emilia | 5,914.17 mi (9,517.94 km) |
| Boulder City to Reggiolo | 5,908.87 mi (9,509.42 km) |
