| Helston to Brezovica | 948.60 mi (1,526.62 km) |
| Helston to Cankova | 1,000.17 mi (1,609.62 km) |
| Helston to Celje | 979.80 mi (1,576.84 km) |
| Helston to Cerklje na Gorenjskem | 945.15 mi (1,521.08 km) |
| Helston to Cerknica | 952.51 mi (1,532.91 km) |
| Helston to Cerkno | 926.92 mi (1,491.73 km) |
| Helston to Cerkvenjak | 1,000.76 mi (1,610.57 km) |
| Helston to Cirkulane | 1,008.84 mi (1,623.57 km) |
| Helston to Crensovci | 1,016.01 mi (1,635.10 km) |
| Helston to Crna na Koroskem | 955.13 mi (1,537.13 km) |
| Helston to Crnomelj | 995.40 mi (1,601.95 km) |
| Helston to Destrnik | 999.90 mi (1,609.19 km) |
| Helston to Divaca | 939.05 mi (1,511.25 km) |
| Helston to Dobje | 988.10 mi (1,590.19 km) |
| Helston to Dobrna | 975.35 mi (1,569.68 km) |
