| Gretna to Kidricevo | 5,429.77 mi (8,738.38 km) |
| Gretna to Kobarid | 5,344.66 mi (8,601.40 km) |
| Gretna to Kobilje | 5,443.73 mi (8,760.83 km) |
| Gretna to Kocevje | 5,418.88 mi (8,720.85 km) |
| Gretna to Komen | 5,366.86 mi (8,637.12 km) |
| Gretna to Komenda | 5,385.57 mi (8,667.23 km) |
| Gretna to Koper | 5,375.46 mi (8,650.97 km) |
| Gretna to Kostanjevica na Krki | 5,434.84 mi (8,746.53 km) |
| Gretna to Kostel | 5,425.79 mi (8,731.96 km) |
| Gretna to Kozje | 5,432.08 mi (8,742.09 km) |
| Gretna to Kranj | 5,377.57 mi (8,654.37 km) |
| Gretna to Kranjska Gora | 5,344.92 mi (8,601.82 km) |
| Gretna to Krizevci | 5,437.86 mi (8,751.39 km) |
| Gretna to Krsko | 5,433.48 mi (8,744.34 km) |
| Gretna to Kuzma | 5,425.73 mi (8,731.86 km) |
