| Potters Bar to Popovo | 1,350.84 mi (2,173.97 km) |
| Potters Bar to Provadia | 1,407.15 mi (2,264.59 km) |
| Potters Bar to Radnevo | 1,380.93 mi (2,222.39 km) |
| Potters Bar to Radomir | 1,249.92 mi (2,011.56 km) |
| Potters Bar to Rakitovo | 1,319.64 mi (2,123.75 km) |
| Potters Bar to Rakovski | 1,342.08 mi (2,159.88 km) |
| Potters Bar to Razgrad | 1,355.47 mi (2,181.42 km) |
| Potters Bar to Razlog | 1,299.44 mi (2,091.25 km) |
| Potters Bar to Ruse | 1,320.96 mi (2,125.89 km) |
| Potters Bar to Samokov | 1,283.25 mi (2,065.20 km) |
| Potters Bar to Sandanski | 1,306.14 mi (2,102.03 km) |
| Potters Bar to Sevlievo | 1,317.63 mi (2,120.53 km) |
| Potters Bar to Shumen | 1,382.47 mi (2,224.88 km) |
| Potters Bar to Silistra | 1,364.49 mi (2,195.93 km) |
| Potters Bar to Sliven | 1,381.55 mi (2,223.40 km) |
