| Grinon to Santarem | 265.77 mi (427.72 km) |
| Grinon to Santiago do Cacem | 301.10 mi (484.57 km) |
| Grinon to Santo Andre | 302.22 mi (486.37 km) |
| Grinon to Santo Tirso | 253.54 mi (408.04 km) |
| Grinon to Sao Bras de Alportel | 303.61 mi (488.61 km) |
| Grinon to Sao Felix da Marinha | 256.55 mi (412.88 km) |
| Grinon to Sao Joao da Madeira | 247.98 mi (399.09 km) |
| Grinon to Sao Joao de Ver | 251.84 mi (405.30 km) |
| Grinon to Sao Mamede de Infesta | 257.85 mi (414.98 km) |
| Grinon to Sao Pedro do Sul | 224.62 mi (361.48 km) |
| Grinon to Satao | 207.18 mi (333.42 km) |
| Grinon to Seia | 203.42 mi (327.38 km) |
| Grinon to Senhora da Hora | 260.21 mi (418.76 km) |
| Grinon to Serpa | 255.05 mi (410.46 km) |
| Grinon to Serta | 226.73 mi (364.89 km) |
