| Orinda to Popovo | 6,485.49 mi (10,437.39 km) |
| Orinda to Provadia | 6,520.61 mi (10,493.90 km) |
| Orinda to Radnevo | 6,545.12 mi (10,533.35 km) |
| Orinda to Radomir | 6,463.33 mi (10,401.73 km) |
| Orinda to Rakitovo | 6,524.22 mi (10,499.71 km) |
| Orinda to Rakovski | 6,524.88 mi (10,500.77 km) |
| Orinda to Razgrad | 6,479.82 mi (10,428.26 km) |
| Orinda to Razlog | 6,516.37 mi (10,487.08 km) |
| Orinda to Ruse | 6,449.95 mi (10,380.19 km) |
| Orinda to Samokov | 6,490.33 mi (10,445.18 km) |
| Orinda to Sandanski | 6,531.58 mi (10,511.56 km) |
| Orinda to Sevlievo | 6,482.07 mi (10,431.89 km) |
| Orinda to Shumen | 6,504.13 mi (10,467.39 km) |
| Orinda to Silistra | 6,458.04 mi (10,393.21 km) |
| Orinda to Sliven | 6,529.51 mi (10,508.24 km) |
