| Harlow to Cascais | 1,014.00 mi (1,631.88 km) |
| Harlow to Castelo Branco | 903.32 mi (1,453.76 km) |
| Harlow to Castro Daire | 843.11 mi (1,356.85 km) |
| Harlow to Celorico de Basto | 814.25 mi (1,310.40 km) |
| Harlow to Chamusca | 952.89 mi (1,533.53 km) |
| Harlow to Chaves | 780.31 mi (1,255.79 km) |
| Harlow to Cinfaes | 834.90 mi (1,343.65 km) |
| Harlow to Coimbra | 897.19 mi (1,443.89 km) |
| Harlow to Condeixa-a-Nova | 904.67 mi (1,455.93 km) |
| Harlow to Corroios | 1,013.68 mi (1,631.35 km) |
| Harlow to Coruche | 978.86 mi (1,575.33 km) |
| Harlow to Costa de Caparica | 1,013.59 mi (1,631.21 km) |
| Harlow to Covilha | 873.36 mi (1,405.54 km) |
| Harlow to Eiras | 895.13 mi (1,440.57 km) |
| Harlow to Elvas | 958.49 mi (1,542.54 km) |
