| Waterford to Karlovo | 1,616.30 mi (2,601.18 km) |
| Waterford to Karnobat | 1,707.24 mi (2,747.54 km) |
| Waterford to Kavarna | 1,732.95 mi (2,788.91 km) |
| Waterford to Kazanlak | 1,641.97 mi (2,642.49 km) |
| Waterford to Knezha | 1,552.60 mi (2,498.67 km) |
| Waterford to Kostinbrod | 1,543.60 mi (2,484.19 km) |
| Waterford to Kozloduy | 1,527.19 mi (2,457.77 km) |
| Waterford to Kyustendil | 1,543.44 mi (2,483.93 km) |
| Waterford to Levski | 1,601.47 mi (2,577.32 km) |
| Waterford to Lom | 1,504.95 mi (2,421.98 km) |
| Waterford to Lovech | 1,593.14 mi (2,563.92 km) |
| Waterford to Lukovit | 1,567.72 mi (2,523.00 km) |
| Waterford to Lyaskovets | 1,636.12 mi (2,633.08 km) |
| Waterford to Mezdra | 1,550.32 mi (2,495.01 km) |
| Waterford to Momchilgrad | 1,686.88 mi (2,714.78 km) |
