| Larbert to Popovo | 1,584.30 mi (2,549.69 km) |
| Larbert to Provadia | 1,635.79 mi (2,632.54 km) |
| Larbert to Radnevo | 1,624.88 mi (2,614.98 km) |
| Larbert to Radomir | 1,507.84 mi (2,426.64 km) |
| Larbert to Rakitovo | 1,575.87 mi (2,536.12 km) |
| Larbert to Rakovski | 1,591.24 mi (2,560.86 km) |
| Larbert to Razgrad | 1,585.79 mi (2,552.08 km) |
| Larbert to Razlog | 1,559.72 mi (2,510.12 km) |
| Larbert to Ruse | 1,551.60 mi (2,497.06 km) |
| Larbert to Samokov | 1,539.58 mi (2,477.71 km) |
| Larbert to Sandanski | 1,569.70 mi (2,526.19 km) |
| Larbert to Sevlievo | 1,559.91 mi (2,510.43 km) |
| Larbert to Shumen | 1,612.84 mi (2,595.61 km) |
| Larbert to Silistra | 1,585.45 mi (2,551.54 km) |
| Larbert to Sliven | 1,620.25 mi (2,607.53 km) |
