| Couvin to Provadia | 1,181.86 mi (1,902.02 km) |
| Couvin to Radnevo | 1,151.81 mi (1,853.67 km) |
| Couvin to Radomir | 1,018.49 mi (1,639.10 km) |
| Couvin to Rakitovo | 1,088.32 mi (1,751.47 km) |
| Couvin to Rakovski | 1,111.99 mi (1,789.57 km) |
| Couvin to Razgrad | 1,129.96 mi (1,818.50 km) |
| Couvin to Razlog | 1,067.56 mi (1,718.07 km) |
| Couvin to Ruse | 1,095.54 mi (1,763.11 km) |
| Couvin to Samokov | 1,052.00 mi (1,693.03 km) |
| Couvin to Sandanski | 1,073.84 mi (1,728.18 km) |
| Couvin to Sevlievo | 1,089.13 mi (1,752.79 km) |
| Couvin to Shumen | 1,156.81 mi (1,861.71 km) |
| Couvin to Silistra | 1,141.79 mi (1,837.53 km) |
| Couvin to Sliven | 1,153.67 mi (1,856.66 km) |
| Couvin to Smolyan | 1,130.36 mi (1,819.13 km) |
