| Boppard to Kayapinar | 1,807.18 mi (2,908.38 km) |
| Boppard to Kayseri | 1,574.98 mi (2,534.68 km) |
| Boppard to Kemalpasa | 1,267.83 mi (2,040.38 km) |
| Boppard to Kemer | 1,477.58 mi (2,377.93 km) |
| Boppard to Keskin | 1,455.68 mi (2,342.69 km) |
| Boppard to Kilimli | 1,305.60 mi (2,101.16 km) |
| Boppard to Kilis | 1,732.85 mi (2,788.76 km) |
| Boppard to Kinik | 1,233.39 mi (1,984.94 km) |
| Boppard to Kirikkale | 1,444.28 mi (2,324.34 km) |
| Boppard to Kirkagac | 1,244.04 mi (2,002.09 km) |
| Boppard to Kirklareli | 1,105.39 mi (1,778.96 km) |
| Boppard to Kirsehir | 1,501.32 mi (2,416.15 km) |
| Boppard to Kizilpinar | 1,155.56 mi (1,859.69 km) |
| Boppard to Kiziltepe | 1,856.52 mi (2,987.78 km) |
| Boppard to Kocaali | 1,282.30 mi (2,063.67 km) |
