| Ommen to Chitila | 1,047.59 mi (1,685.93 km) |
| Ommen to Cisnadie | 926.02 mi (1,490.29 km) |
| Ommen to Cluj-Napoca | 861.78 mi (1,386.90 km) |
| Ommen to Codlea | 976.97 mi (1,572.27 km) |
| Ommen to Comanesti | 988.54 mi (1,590.90 km) |
| Ommen to Comarnic | 1,002.68 mi (1,613.66 km) |
| Ommen to Constanta | 1,165.22 mi (1,875.25 km) |
| Ommen to Corabia | 1,024.99 mi (1,649.56 km) |
| Ommen to Costesti | 998.49 mi (1,606.91 km) |
| Ommen to Covasna | 1,000.13 mi (1,609.56 km) |
| Ommen to Craiova | 973.77 mi (1,567.13 km) |
| Ommen to Cristuru Secuiesc | 937.37 mi (1,508.55 km) |
| Ommen to Cugir | 890.31 mi (1,432.82 km) |
| Ommen to Cumpana | 1,164.45 mi (1,874.01 km) |
| Ommen to Curtea de Arges | 970.49 mi (1,561.86 km) |
