| Mackworth to Popovo | 1,428.81 mi (2,299.45 km) |
| Mackworth to Provadia | 1,483.86 mi (2,388.04 km) |
| Mackworth to Radnevo | 1,462.04 mi (2,352.92 km) |
| Mackworth to Radomir | 1,334.75 mi (2,148.06 km) |
| Mackworth to Rakitovo | 1,404.14 mi (2,259.75 km) |
| Mackworth to Rakovski | 1,424.61 mi (2,292.68 km) |
| Mackworth to Razgrad | 1,432.52 mi (2,305.43 km) |
| Mackworth to Razlog | 1,385.06 mi (2,229.04 km) |
| Mackworth to Ruse | 1,398.01 mi (2,249.88 km) |
| Mackworth to Samokov | 1,367.70 mi (2,201.10 km) |
| Mackworth to Sandanski | 1,392.71 mi (2,241.35 km) |
| Mackworth to Sevlievo | 1,398.09 mi (2,250.01 km) |
| Mackworth to Shumen | 1,459.62 mi (2,349.03 km) |
| Mackworth to Silistra | 1,438.80 mi (2,315.53 km) |
| Mackworth to Sliven | 1,461.14 mi (2,351.47 km) |
