| Circleville to Popovo | 5,203.04 mi (8,373.48 km) |
| Circleville to Provadia | 5,255.86 mi (8,458.48 km) |
| Circleville to Radnevo | 5,239.42 mi (8,432.03 km) |
| Circleville to Radomir | 5,112.36 mi (8,227.54 km) |
| Circleville to Rakitovo | 5,181.92 mi (8,339.50 km) |
| Circleville to Rakovski | 5,202.60 mi (8,372.77 km) |
| Circleville to Razgrad | 5,205.37 mi (8,377.24 km) |
| Circleville to Razlog | 5,162.15 mi (8,307.68 km) |
| Circleville to Ruse | 5,171.02 mi (8,321.95 km) |
| Circleville to Samokov | 5,145.50 mi (8,280.87 km) |
| Circleville to Sandanski | 5,168.85 mi (8,318.46 km) |
| Circleville to Sevlievo | 5,175.09 mi (8,328.51 km) |
| Circleville to Shumen | 5,232.48 mi (8,420.86 km) |
| Circleville to Silistra | 5,206.43 mi (8,378.94 km) |
| Circleville to Sliven | 5,237.24 mi (8,428.52 km) |
