| Colfontaine to Karnobat | 1,217.03 mi (1,958.62 km) |
| Colfontaine to Kavarna | 1,244.49 mi (2,002.82 km) |
| Colfontaine to Kazanlak | 1,151.52 mi (1,853.19 km) |
| Colfontaine to Knezha | 1,062.17 mi (1,709.39 km) |
| Colfontaine to Kostinbrod | 1,053.62 mi (1,695.64 km) |
| Colfontaine to Kozloduy | 1,036.77 mi (1,668.53 km) |
| Colfontaine to Kyustendil | 1,054.57 mi (1,697.17 km) |
| Colfontaine to Levski | 1,111.16 mi (1,788.24 km) |
| Colfontaine to Lom | 1,014.50 mi (1,632.69 km) |
| Colfontaine to Lovech | 1,102.70 mi (1,774.62 km) |
| Colfontaine to Lukovit | 1,077.28 mi (1,733.71 km) |
| Colfontaine to Lyaskovets | 1,145.82 mi (1,844.01 km) |
| Colfontaine to Mezdra | 1,059.95 mi (1,705.83 km) |
| Colfontaine to Momchilgrad | 1,196.96 mi (1,926.32 km) |
| Colfontaine to Montana | 1,030.04 mi (1,657.69 km) |
