| Helsinki to Cankova | 997.17 mi (1,604.79 km) |
| Helsinki to Celje | 1,040.14 mi (1,673.94 km) |
| Helsinki to Cerklje na Gorenjskem | 1,051.72 mi (1,692.59 km) |
| Helsinki to Cerknica | 1,083.19 mi (1,743.23 km) |
| Helsinki to Cerkno | 1,067.78 mi (1,718.42 km) |
| Helsinki to Cerkvenjak | 1,008.34 mi (1,622.77 km) |
| Helsinki to Cirkulane | 1,022.23 mi (1,645.12 km) |
| Helsinki to Crensovci | 1,002.71 mi (1,613.71 km) |
| Helsinki to Crna na Koroskem | 1,031.47 mi (1,659.99 km) |
| Helsinki to Crnomelj | 1,084.90 mi (1,745.98 km) |
| Helsinki to Destrnik | 1,014.11 mi (1,632.05 km) |
| Helsinki to Divaca | 1,097.02 mi (1,765.48 km) |
| Helsinki to Dobje | 1,044.68 mi (1,681.24 km) |
| Helsinki to Dobrna | 1,034.04 mi (1,664.12 km) |
| Helsinki to Dobrova | 1,065.58 mi (1,714.89 km) |
