| Barntrup to Popovo | 990.96 mi (1,594.79 km) |
| Barntrup to Provadia | 1,043.26 mi (1,678.97 km) |
| Barntrup to Radnevo | 1,031.08 mi (1,659.37 km) |
| Barntrup to Radomir | 916.55 mi (1,475.04 km) |
| Barntrup to Rakitovo | 983.83 mi (1,583.32 km) |
| Barntrup to Rakovski | 997.87 mi (1,605.92 km) |
| Barntrup to Razgrad | 992.88 mi (1,597.88 km) |
| Barntrup to Razlog | 968.91 mi (1,559.32 km) |
| Barntrup to Ruse | 958.58 mi (1,542.68 km) |
| Barntrup to Samokov | 947.70 mi (1,525.17 km) |
| Barntrup to Sandanski | 980.04 mi (1,577.22 km) |
| Barntrup to Sevlievo | 966.10 mi (1,554.78 km) |
| Barntrup to Shumen | 1,019.97 mi (1,641.48 km) |
| Barntrup to Silistra | 994.58 mi (1,600.63 km) |
| Barntrup to Sliven | 1,026.51 mi (1,652.00 km) |
