| Couvin to Karnobat | 1,183.10 mi (1,904.02 km) |
| Couvin to Kavarna | 1,211.71 mi (1,950.05 km) |
| Couvin to Kazanlak | 1,117.00 mi (1,797.64 km) |
| Couvin to Knezha | 1,027.82 mi (1,654.12 km) |
| Couvin to Kostinbrod | 1,018.46 mi (1,639.05 km) |
| Couvin to Kozloduy | 1,002.53 mi (1,613.41 km) |
| Couvin to Kyustendil | 1,018.90 mi (1,639.76 km) |
| Couvin to Levski | 1,077.11 mi (1,733.43 km) |
| Couvin to Lom | 980.10 mi (1,577.31 km) |
| Couvin to Lovech | 1,068.31 mi (1,719.28 km) |
| Couvin to Lukovit | 1,042.73 mi (1,678.11 km) |
| Couvin to Lyaskovets | 1,111.77 mi (1,789.23 km) |
| Couvin to Mezdra | 1,025.19 mi (1,649.89 km) |
| Couvin to Momchilgrad | 1,161.76 mi (1,869.68 km) |
| Couvin to Montana | 995.30 mi (1,601.77 km) |
