| Cities | Distance |
|---|---|
| Grenchen to Popovo | 950.94 mi (1,530.38 km) |
| Grenchen to Provadia | 1,011.06 mi (1,627.14 km) |
| Grenchen to Radnevo | 967.52 mi (1,557.07 km) |
| Grenchen to Radomir | 824.51 mi (1,326.92 km) |
| Grenchen to Rakitovo | 894.15 mi (1,439.00 km) |
| Grenchen to Rakovski | 923.86 mi (1,486.81 km) |
| Grenchen to Razgrad | 959.27 mi (1,543.80 km) |
| Grenchen to Razlog | 870.11 mi (1,400.31 km) |
| Grenchen to Ruse | 925.77 mi (1,489.88 km) |
| Grenchen to Samokov | 858.66 mi (1,381.88 km) |
| Grenchen to Sandanski | 873.21 mi (1,405.29 km) |
| Grenchen to Sevlievo | 908.24 mi (1,461.68 km) |
| Grenchen to Shumen | 985.18 mi (1,585.49 km) |
| Grenchen to Silistra | 979.70 mi (1,576.67 km) |
| Grenchen to Sliven | 974.25 mi (1,567.91 km) |