| Gillingham to Popovo | 1,314.85 mi (2,116.05 km) |
| Gillingham to Provadia | 1,371.41 mi (2,207.06 km) |
| Gillingham to Radnevo | 1,344.33 mi (2,163.49 km) |
| Gillingham to Radomir | 1,212.72 mi (1,951.68 km) |
| Gillingham to Rakitovo | 1,282.47 mi (2,063.93 km) |
| Gillingham to Rakovski | 1,305.24 mi (2,100.58 km) |
| Gillingham to Razgrad | 1,319.67 mi (2,123.80 km) |
| Gillingham to Razlog | 1,262.10 mi (2,031.16 km) |
| Gillingham to Ruse | 1,285.17 mi (2,068.29 km) |
| Gillingham to Samokov | 1,246.10 mi (2,005.40 km) |
| Gillingham to Sandanski | 1,268.66 mi (2,041.71 km) |
| Gillingham to Sevlievo | 1,281.17 mi (2,061.84 km) |
| Gillingham to Shumen | 1,346.64 mi (2,167.21 km) |
| Gillingham to Silistra | 1,329.26 mi (2,139.24 km) |
| Gillingham to Sliven | 1,345.24 mi (2,164.96 km) |
