| Watertown to Popovo | 4,732.72 mi (7,616.57 km) |
| Watertown to Provadia | 4,785.73 mi (7,701.89 km) |
| Watertown to Radnevo | 4,768.78 mi (7,674.62 km) |
| Watertown to Radomir | 4,641.53 mi (7,469.82 km) |
| Watertown to Rakitovo | 4,711.10 mi (7,581.79 km) |
| Watertown to Rakovski | 4,731.86 mi (7,615.20 km) |
| Watertown to Razgrad | 4,735.17 mi (7,620.51 km) |
| Watertown to Razlog | 4,691.31 mi (7,549.94 km) |
| Watertown to Ruse | 4,700.79 mi (7,565.19 km) |
| Watertown to Samokov | 4,674.68 mi (7,523.16 km) |
| Watertown to Sandanski | 4,698.02 mi (7,560.73 km) |
| Watertown to Sevlievo | 4,704.50 mi (7,571.16 km) |
| Watertown to Shumen | 4,762.28 mi (7,664.15 km) |
| Watertown to Silistra | 4,736.63 mi (7,622.87 km) |
| Watertown to Sliven | 4,766.75 mi (7,671.34 km) |
