| Karlovo to Resana | 669.28 mi (1,077.10 km) |
| Karlovo to Rescaldina | 811.28 mi (1,305.62 km) |
| Karlovo to Rezzato | 744.89 mi (1,198.78 km) |
| Karlovo to Rho | 806.41 mi (1,297.79 km) |
| Karlovo to Ribera | 705.31 mi (1,135.08 km) |
| Karlovo to Riccione Marina | 617.65 mi (994.02 km) |
| Karlovo to Riesi | 677.17 mi (1,089.80 km) |
| Karlovo to Rieti | 608.25 mi (978.89 km) |
| Karlovo to Rignano Flaminio | 628.76 mi (1,011.90 km) |
| Karlovo to Rignano sull'Arno | 676.28 mi (1,088.37 km) |
| Karlovo to Rimini | 622.03 mi (1,001.06 km) |
| Karlovo to Rionero in Vulture | 485.56 mi (781.43 km) |
| Karlovo to Riposto | 609.51 mi (980.90 km) |
| Karlovo to Riva del Garda | 724.85 mi (1,166.53 km) |
| Karlovo to Rivalta di Torino | 875.52 mi (1,409.01 km) |
