| Formia to Santeramo in Colle | 167.30 mi (269.25 km) |
| Formia to Santo Stefano di Magra | 274.43 mi (441.65 km) |
| Formia to Santo Stino di Livenza | 312.13 mi (502.33 km) |
| Formia to Sarezzo | 347.89 mi (559.88 km) |
| Formia to Sarno | 60.68 mi (97.66 km) |
| Formia to Saronno | 378.64 mi (609.36 km) |
| Formia to Sarzana | 270.46 mi (435.26 km) |
| Formia to Sassari | 266.32 mi (428.61 km) |
| Formia to Sasso Marconi | 247.46 mi (398.24 km) |
| Formia to Sassuolo | 268.37 mi (431.89 km) |
| Formia to Sava | 214.97 mi (345.97 km) |
| Formia to Saviano | 52.74 mi (84.87 km) |
| Formia to Savigliano | 382.17 mi (615.04 km) |
| Formia to Savignano sul Panaro | 257.85 mi (414.97 km) |
| Formia to Savignano sul Rubicone | 204.60 mi (329.27 km) |
