| Grenchen to Cesme | 1,133.52 mi (1,824.23 km) |
| Grenchen to Ceyhan | 1,604.84 mi (2,582.74 km) |
| Grenchen to Ceylanpinar | 1,805.38 mi (2,905.48 km) |
| Grenchen to Cicekdagi | 1,444.79 mi (2,325.16 km) |
| Grenchen to Cide | 1,306.45 mi (2,102.53 km) |
| Grenchen to Cifteler | 1,299.04 mi (2,090.60 km) |
| Grenchen to Ciftlik | 1,500.52 mi (2,414.85 km) |
| Grenchen to Ciftlikkoy | 1,175.74 mi (1,892.17 km) |
| Grenchen to Cihanbeyli | 1,411.44 mi (2,271.50 km) |
| Grenchen to Cildir | 1,803.31 mi (2,902.14 km) |
| Grenchen to Cilimli | 1,246.63 mi (2,006.25 km) |
| Grenchen to Cinar | 1,789.40 mi (2,879.76 km) |
| Grenchen to Cinarcik | 1,167.13 mi (1,878.31 km) |
| Grenchen to Cine | 1,239.00 mi (1,993.97 km) |
| Grenchen to Civril | 1,282.82 mi (2,064.50 km) |
