| Marlow to Popovo | 1,373.47 mi (2,210.39 km) |
| Marlow to Provadia | 1,430.04 mi (2,301.43 km) |
| Marlow to Radnevo | 1,402.78 mi (2,257.56 km) |
| Marlow to Radomir | 1,270.77 mi (2,045.11 km) |
| Marlow to Rakitovo | 1,340.55 mi (2,157.41 km) |
| Marlow to Rakovski | 1,363.57 mi (2,194.45 km) |
| Marlow to Razgrad | 1,378.30 mi (2,218.16 km) |
| Marlow to Razlog | 1,320.02 mi (2,124.37 km) |
| Marlow to Ruse | 1,343.81 mi (2,162.65 km) |
| Marlow to Samokov | 1,304.20 mi (2,098.91 km) |
| Marlow to Sandanski | 1,326.40 mi (2,134.64 km) |
| Marlow to Sevlievo | 1,339.67 mi (2,156.00 km) |
| Marlow to Shumen | 1,405.28 mi (2,261.57 km) |
| Marlow to Silistra | 1,387.88 mi (2,233.59 km) |
| Marlow to Sliven | 1,403.79 mi (2,259.18 km) |
