| Karlovo to Rodez | 1,117.05 mi (1,797.72 km) |
| Karlovo to Rognac | 987.54 mi (1,589.29 km) |
| Karlovo to Roissy-en-Brie | 1,144.91 mi (1,842.56 km) |
| Karlovo to Romainville | 1,156.01 mi (1,860.42 km) |
| Karlovo to Romans-sur-Isere | 995.75 mi (1,602.51 km) |
| Karlovo to Rombas | 1,004.50 mi (1,616.59 km) |
| Karlovo to Romilly-sur-Seine | 1,092.76 mi (1,758.63 km) |
| Karlovo to Ronchin | 1,162.14 mi (1,870.28 km) |
| Karlovo to Roncq | 1,164.33 mi (1,873.81 km) |
| Karlovo to Roquebrune-sur-Argens | 917.32 mi (1,476.28 km) |
| Karlovo to Roquevaire | 969.47 mi (1,560.21 km) |
| Karlovo to Rosny-sous-Bois | 1,153.60 mi (1,856.53 km) |
| Karlovo to Roubaix | 1,160.29 mi (1,867.31 km) |
| Karlovo to Rouen | 1,224.17 mi (1,970.11 km) |
| Karlovo to Rouvroy | 1,164.93 mi (1,874.77 km) |
