| Boulder to Rochefort | 4,884.12 mi (7,860.23 km) |
| Boulder to Rodez | 5,086.97 mi (8,186.69 km) |
| Boulder to Rognac | 5,225.59 mi (8,409.78 km) |
| Boulder to Roissy-en-Brie | 4,892.39 mi (7,873.55 km) |
| Boulder to Romainville | 4,880.68 mi (7,854.69 km) |
| Boulder to Romans-sur-Isere | 5,146.87 mi (8,283.09 km) |
| Boulder to Rombas | 4,990.43 mi (8,031.32 km) |
| Boulder to Romilly-sur-Seine | 4,942.22 mi (7,953.73 km) |
| Boulder to Ronchin | 4,827.90 mi (7,769.76 km) |
| Boulder to Roncq | 4,822.49 mi (7,761.06 km) |
| Boulder to Roquebrune-sur-Argens | 5,279.54 mi (8,496.59 km) |
| Boulder to Roquevaire | 5,245.85 mi (8,442.38 km) |
| Boulder to Rosny-sous-Bois | 4,883.13 mi (7,858.64 km) |
| Boulder to Roubaix | 4,827.35 mi (7,768.87 km) |
| Boulder to Rouen | 4,809.09 mi (7,739.48 km) |
