| Romans-sur-Isere to Popovo | 1,052.71 mi (1,694.18 km) |
| Romans-sur-Isere to Provadia | 1,114.08 mi (1,792.93 km) |
| Romans-sur-Isere to Radnevo | 1,057.57 mi (1,701.99 km) |
| Romans-sur-Isere to Radomir | 907.13 mi (1,459.89 km) |
| Romans-sur-Isere to Rakitovo | 974.35 mi (1,568.07 km) |
| Romans-sur-Isere to Rakovski | 1,010.65 mi (1,626.48 km) |
| Romans-sur-Isere to Razgrad | 1,063.60 mi (1,711.70 km) |
| Romans-sur-Isere to Razlog | 946.72 mi (1,523.59 km) |
| Romans-sur-Isere to Ruse | 1,031.80 mi (1,660.52 km) |
| Romans-sur-Isere to Samokov | 940.99 mi (1,514.37 km) |
| Romans-sur-Isere to Sandanski | 945.32 mi (1,521.34 km) |
| Romans-sur-Isere to Sevlievo | 1,003.58 mi (1,615.10 km) |
| Romans-sur-Isere to Shumen | 1,087.98 mi (1,750.93 km) |
| Romans-sur-Isere to Silistra | 1,091.39 mi (1,756.42 km) |
| Romans-sur-Isere to Sliven | 1,069.44 mi (1,721.10 km) |
