| Grenoble to Popovo | 1,019.91 mi (1,641.38 km) |
| Grenoble to Provadia | 1,081.24 mi (1,740.09 km) |
| Grenoble to Radnevo | 1,025.44 mi (1,650.29 km) |
| Grenoble to Radomir | 875.35 mi (1,408.74 km) |
| Grenoble to Rakitovo | 942.82 mi (1,517.32 km) |
| Grenoble to Rakovski | 978.69 mi (1,575.05 km) |
| Grenoble to Razgrad | 1,030.68 mi (1,658.72 km) |
| Grenoble to Razlog | 915.41 mi (1,473.21 km) |
| Grenoble to Ruse | 998.78 mi (1,607.38 km) |
| Grenoble to Samokov | 909.26 mi (1,463.32 km) |
| Grenoble to Sandanski | 914.35 mi (1,471.50 km) |
| Grenoble to Sevlievo | 971.09 mi (1,562.82 km) |
| Grenoble to Shumen | 1,055.14 mi (1,698.09 km) |
| Grenoble to Silistra | 1,058.14 mi (1,702.92 km) |
| Grenoble to Sliven | 1,037.01 mi (1,668.91 km) |
