| Gelnhausen to San Giovanni Rotondo | 666.03 mi (1,071.88 km) |
| Gelnhausen to San Giovanni Valdarno | 471.83 mi (759.34 km) |
| Gelnhausen to San Giuliano Milanese | 331.69 mi (533.81 km) |
| Gelnhausen to San Giuliano Terme | 448.81 mi (722.29 km) |
| Gelnhausen to San Giuseppe Iato | 868.09 mi (1,397.06 km) |
| Gelnhausen to San Giuseppe Vesuviano | 696.33 mi (1,120.63 km) |
| Gelnhausen to San Giustino | 480.95 mi (774.01 km) |
| Gelnhausen to San Gregorio di Catania | 921.05 mi (1,482.28 km) |
| Gelnhausen to San Lazzaro di Savena | 409.38 mi (658.84 km) |
| Gelnhausen to San Marco in Lamis | 663.10 mi (1,067.16 km) |
| Gelnhausen to San Martino Buon Albergo | 342.42 mi (551.07 km) |
| Gelnhausen to San Martino di Lupari | 337.77 mi (543.58 km) |
| Gelnhausen to San Marzano di San Giuseppe | 784.82 mi (1,263.04 km) |
| Gelnhausen to San Marzano sul Sarno | 702.15 mi (1,130.00 km) |
| Gelnhausen to San Maurizio Canavese | 351.59 mi (565.84 km) |
