| Grez-Doiceau to Dimitrovgrad | 1,156.72 mi (1,861.56 km) |
| Grez-Doiceau to Dobrich | 1,187.94 mi (1,911.81 km) |
| Grez-Doiceau to Dospat | 1,117.45 mi (1,798.37 km) |
| Grez-Doiceau to Dupnitsa | 1,048.90 mi (1,688.05 km) |
| Grez-Doiceau to Elhovo | 1,190.91 mi (1,916.58 km) |
| Grez-Doiceau to Etropole | 1,059.12 mi (1,704.48 km) |
| Grez-Doiceau to Gabrovo | 1,111.64 mi (1,789.01 km) |
| Grez-Doiceau to Gorna Oryahovitsa | 1,115.85 mi (1,795.79 km) |
| Grez-Doiceau to Gotse Delchev | 1,104.37 mi (1,777.31 km) |
| Grez-Doiceau to Harmanli | 1,173.80 mi (1,889.05 km) |
| Grez-Doiceau to Haskovo | 1,160.40 mi (1,867.49 km) |
| Grez-Doiceau to Ihtiman | 1,068.77 mi (1,720.02 km) |
| Grez-Doiceau to Isperih | 1,140.31 mi (1,835.15 km) |
| Grez-Doiceau to Kardzhali | 1,164.78 mi (1,874.53 km) |
| Grez-Doiceau to Karlovo | 1,099.57 mi (1,769.59 km) |
