| Niksar to Kidricevo | 1,130.46 mi (1,819.30 km) |
| Niksar to Kobarid | 1,232.00 mi (1,982.71 km) |
| Niksar to Kobilje | 1,107.60 mi (1,782.51 km) |
| Niksar to Kocevje | 1,164.21 mi (1,873.62 km) |
| Niksar to Komen | 1,218.91 mi (1,961.65 km) |
| Niksar to Komenda | 1,186.35 mi (1,909.24 km) |
| Niksar to Koper | 1,217.02 mi (1,958.61 km) |
| Niksar to Kostanjevica na Krki | 1,139.88 mi (1,834.45 km) |
| Niksar to Kostel | 1,160.29 mi (1,867.30 km) |
| Niksar to Kozje | 1,136.66 mi (1,829.27 km) |
| Niksar to Kranj | 1,194.77 mi (1,922.80 km) |
| Niksar to Kranjska Gora | 1,225.23 mi (1,971.81 km) |
| Niksar to Krizevci | 1,117.24 mi (1,798.02 km) |
| Niksar to Krsko | 1,138.50 mi (1,832.24 km) |
| Niksar to Kuzma | 1,124.53 mi (1,809.76 km) |
