| Grover Beach to Popovo | 6,627.21 mi (10,665.46 km) |
| Grover Beach to Provadia | 6,664.26 mi (10,725.09 km) |
| Grover Beach to Radnevo | 6,685.06 mi (10,758.57 km) |
| Grover Beach to Radomir | 6,598.15 mi (10,618.70 km) |
| Grover Beach to Rakitovo | 6,660.38 mi (10,718.85 km) |
| Grover Beach to Rakovski | 6,663.04 mi (10,723.13 km) |
| Grover Beach to Razgrad | 6,622.25 mi (10,657.49 km) |
| Grover Beach to Razlog | 6,651.26 mi (10,704.17 km) |
| Grover Beach to Ruse | 6,591.73 mi (10,608.36 km) |
| Grover Beach to Samokov | 6,625.98 mi (10,663.48 km) |
| Grover Beach to Sandanski | 6,665.72 mi (10,727.44 km) |
| Grover Beach to Sevlievo | 6,621.41 mi (10,656.13 km) |
| Grover Beach to Shumen | 6,647.01 mi (10,697.34 km) |
| Grover Beach to Silistra | 6,602.43 mi (10,625.59 km) |
| Grover Beach to Sliven | 6,670.63 mi (10,735.35 km) |
