| Rio Maior to Devnya | 1,898.95 mi (3,056.06 km) |
| Rio Maior to Dimitrovgrad | 1,806.52 mi (2,907.31 km) |
| Rio Maior to Dobrich | 1,910.51 mi (3,074.66 km) |
| Rio Maior to Dospat | 1,735.89 mi (2,793.65 km) |
| Rio Maior to Dupnitsa | 1,678.62 mi (2,701.48 km) |
| Rio Maior to Elhovo | 1,854.99 mi (2,985.31 km) |
| Rio Maior to Etropole | 1,720.97 mi (2,769.63 km) |
| Rio Maior to Gabrovo | 1,788.24 mi (2,877.89 km) |
| Rio Maior to Gorna Oryahovitsa | 1,805.53 mi (2,905.71 km) |
| Rio Maior to Gotse Delchev | 1,714.20 mi (2,758.74 km) |
| Rio Maior to Harmanli | 1,822.67 mi (2,933.30 km) |
| Rio Maior to Haskovo | 1,805.63 mi (2,905.88 km) |
| Rio Maior to Ihtiman | 1,713.36 mi (2,757.38 km) |
| Rio Maior to Isperih | 1,859.96 mi (2,993.32 km) |
| Rio Maior to Kardzhali | 1,797.49 mi (2,892.79 km) |
