| Boulder to Pyrzyce | 5,078.99 mi (8,173.84 km) |
| Boulder to Pyskowice | 5,326.93 mi (8,572.87 km) |
| Boulder to Raciborz | 5,331.54 mi (8,580.29 km) |
| Boulder to Radom | 5,343.97 mi (8,600.28 km) |
| Boulder to Radomsko | 5,314.69 mi (8,553.16 km) |
| Boulder to Radzionkow Nowy | 5,334.58 mi (8,585.18 km) |
| Boulder to Radzymin | 5,290.46 mi (8,514.18 km) |
| Boulder to Radzyn Podlaski | 5,362.90 mi (8,630.76 km) |
| Boulder to Rawa Mazowiecka | 5,299.99 mi (8,529.50 km) |
| Boulder to Rawicz | 5,212.81 mi (8,389.21 km) |
| Boulder to Reda | 5,099.31 mi (8,206.54 km) |
| Boulder to Rogozno | 5,158.44 mi (8,301.71 km) |
| Boulder to Ropczyce | 5,429.37 mi (8,737.72 km) |
| Boulder to Ruda Slaska | 5,340.06 mi (8,593.99 km) |
| Boulder to Rumia | 5,103.22 mi (8,212.84 km) |
