| Karlovo to Kortenberg | 1,110.30 mi (1,786.86 km) |
| Karlovo to Kortrijk | 1,160.28 mi (1,867.29 km) |
| Karlovo to Kraainem | 1,112.79 mi (1,790.86 km) |
| Karlovo to Kruibeke | 1,127.34 mi (1,814.28 km) |
| Karlovo to Kuurne | 1,159.95 mi (1,866.76 km) |
| Karlovo to La Bruyere | 1,089.37 mi (1,753.17 km) |
| Karlovo to La Calamine | 1,046.60 mi (1,684.35 km) |
| Karlovo to La Louviere | 1,113.73 mi (1,792.37 km) |
| Karlovo to Laarne | 1,141.30 mi (1,836.75 km) |
| Karlovo to Laeken | 1,117.29 mi (1,798.11 km) |
| Karlovo to Lanaken | 1,066.08 mi (1,715.68 km) |
| Karlovo to Landen | 1,084.81 mi (1,745.84 km) |
| Karlovo to Lebbeke | 1,130.15 mi (1,818.80 km) |
| Karlovo to Lede | 1,134.63 mi (1,826.01 km) |
| Karlovo to Ledegem | 1,166.48 mi (1,877.27 km) |
