| Marlow to Imola | 761.59 mi (1,225.67 km) |
| Marlow to Impruneta | 779.64 mi (1,254.71 km) |
| Marlow to Induno Olona | 589.29 mi (948.37 km) |
| Marlow to Inverigo | 608.01 mi (978.49 km) |
| Marlow to Inveruno | 606.50 mi (976.07 km) |
| Marlow to Inzago | 626.89 mi (1,008.88 km) |
| Marlow to Iseo | 640.51 mi (1,030.80 km) |
| Marlow to Isernia | 987.83 mi (1,589.75 km) |
| Marlow to Isola Capo Rizzuto | 1,224.50 mi (1,970.65 km) |
| Marlow to Isola del Liri | 961.53 mi (1,547.43 km) |
| Marlow to Isola della Scala | 692.71 mi (1,114.81 km) |
| Marlow to Isola Vicentina | 691.72 mi (1,113.22 km) |
| Marlow to Ispica | 1,277.81 mi (2,056.43 km) |
| Marlow to Istrana | 713.52 mi (1,148.30 km) |
| Marlow to Itri | 981.41 mi (1,579.42 km) |
