| Smolyan to Kranenburg | 1,126.72 mi (1,813.27 km) |
| Smolyan to Krefeld | 1,089.81 mi (1,753.89 km) |
| Smolyan to Kressbronn am Bodensee | 849.15 mi (1,366.58 km) |
| Smolyan to Kreuzau | 1,072.35 mi (1,725.78 km) |
| Smolyan to Kreuztal | 1,024.92 mi (1,649.45 km) |
| Smolyan to Kriftel | 974.06 mi (1,567.60 km) |
| Smolyan to Kronach | 875.66 mi (1,409.24 km) |
| Smolyan to Kronberg | 976.38 mi (1,571.34 km) |
| Smolyan to Kronshagen | 1,105.99 mi (1,779.92 km) |
| Smolyan to Krumbach | 836.95 mi (1,346.95 km) |
| Smolyan to Kulmbach | 866.00 mi (1,393.70 km) |
| Smolyan to Kummersbruck | 821.53 mi (1,322.12 km) |
| Smolyan to Kunzell | 945.39 mi (1,521.46 km) |
| Smolyan to Kunzelsau | 899.08 mi (1,446.93 km) |
| Smolyan to Kurort Steinbach-Hallenberg | 921.58 mi (1,483.13 km) |
