| Gahanna to Popovo | 5,180.06 mi (8,336.50 km) |
| Gahanna to Provadia | 5,232.73 mi (8,421.26 km) |
| Gahanna to Radnevo | 5,216.74 mi (8,395.53 km) |
| Gahanna to Radomir | 5,090.10 mi (8,191.72 km) |
| Gahanna to Rakitovo | 5,159.63 mi (8,303.62 km) |
| Gahanna to Rakovski | 5,180.08 mi (8,336.54 km) |
| Gahanna to Razgrad | 5,182.30 mi (8,340.11 km) |
| Gahanna to Razlog | 5,139.98 mi (8,272.00 km) |
| Gahanna to Ruse | 5,147.96 mi (8,284.85 km) |
| Gahanna to Samokov | 5,123.19 mi (8,244.98 km) |
| Gahanna to Sandanski | 5,146.80 mi (8,282.97 km) |
| Gahanna to Sevlievo | 5,152.37 mi (8,291.93 km) |
| Gahanna to Shumen | 5,209.40 mi (8,383.73 km) |
| Gahanna to Silistra | 5,183.10 mi (8,341.40 km) |
| Gahanna to Sliven | 5,214.40 mi (8,391.77 km) |
