| Harrow to Cernavoda | 1,394.44 mi (2,244.13 km) |
| Harrow to Chitila | 1,301.79 mi (2,095.03 km) |
| Harrow to Cisnadie | 1,182.77 mi (1,903.49 km) |
| Harrow to Cluj-Napoca | 1,125.12 mi (1,810.71 km) |
| Harrow to Codlea | 1,238.02 mi (1,992.41 km) |
| Harrow to Comanesti | 1,257.57 mi (2,023.87 km) |
| Harrow to Comarnic | 1,261.10 mi (2,029.54 km) |
| Harrow to Constanta | 1,425.96 mi (2,294.86 km) |
| Harrow to Corabia | 1,267.47 mi (2,039.79 km) |
| Harrow to Costesti | 1,249.71 mi (2,011.22 km) |
| Harrow to Covasna | 1,264.54 mi (2,035.09 km) |
| Harrow to Craiova | 1,217.72 mi (1,959.73 km) |
| Harrow to Cristuru Secuiesc | 1,201.53 mi (1,933.68 km) |
| Harrow to Cugir | 1,145.19 mi (1,843.01 km) |
| Harrow to Cumpana | 1,424.62 mi (2,292.70 km) |
