| Hercules to Devnya | 6,514.66 mi (10,484.33 km) |
| Hercules to Dimitrovgrad | 6,547.33 mi (10,536.91 km) |
| Hercules to Dobrich | 6,497.74 mi (10,457.10 km) |
| Hercules to Dospat | 6,540.65 mi (10,526.16 km) |
| Hercules to Dupnitsa | 6,478.70 mi (10,426.45 km) |
| Hercules to Elhovo | 6,560.56 mi (10,558.20 km) |
| Hercules to Etropole | 6,463.41 mi (10,401.85 km) |
| Hercules to Gabrovo | 6,490.43 mi (10,445.34 km) |
| Hercules to Gorna Oryahovitsa | 6,481.53 mi (10,431.01 km) |
| Hercules to Gotse Delchev | 6,535.97 mi (10,518.63 km) |
| Hercules to Harmanli | 6,561.10 mi (10,559.08 km) |
| Hercules to Haskovo | 6,553.92 mi (10,547.52 km) |
| Hercules to Ihtiman | 6,483.88 mi (10,434.79 km) |
| Hercules to Isperih | 6,468.25 mi (10,409.65 km) |
| Hercules to Kardzhali | 6,567.31 mi (10,569.07 km) |
