| Peterborough to Karlovo | 1,343.00 mi (2,161.35 km) |
| Peterborough to Karnobat | 1,429.75 mi (2,300.96 km) |
| Peterborough to Kavarna | 1,451.02 mi (2,335.19 km) |
| Peterborough to Kazanlak | 1,367.53 mi (2,200.82 km) |
| Peterborough to Knezha | 1,277.52 mi (2,055.97 km) |
| Peterborough to Kostinbrod | 1,273.25 mi (2,049.10 km) |
| Peterborough to Kozloduy | 1,251.71 mi (2,014.43 km) |
| Peterborough to Kyustendil | 1,276.84 mi (2,054.88 km) |
| Peterborough to Levski | 1,324.83 mi (2,132.11 km) |
| Peterborough to Lom | 1,230.32 mi (1,980.01 km) |
| Peterborough to Lovech | 1,318.17 mi (2,121.39 km) |
| Peterborough to Lukovit | 1,293.63 mi (2,081.90 km) |
| Peterborough to Lyaskovets | 1,359.34 mi (2,187.65 km) |
| Peterborough to Mezdra | 1,277.45 mi (2,055.86 km) |
| Peterborough to Momchilgrad | 1,416.47 mi (2,279.59 km) |
