| Boulder City to Imola | 5,967.23 mi (9,603.32 km) |
| Boulder City to Impruneta | 5,987.16 mi (9,635.40 km) |
| Boulder City to Induno Olona | 5,796.56 mi (9,328.67 km) |
| Boulder City to Inverigo | 5,814.99 mi (9,358.33 km) |
| Boulder City to Inveruno | 5,814.05 mi (9,356.80 km) |
| Boulder City to Inzago | 5,833.88 mi (9,388.72 km) |
| Boulder City to Iseo | 5,845.91 mi (9,408.09 km) |
| Boulder City to Isernia | 6,194.90 mi (9,969.72 km) |
| Boulder City to Isola Capo Rizzuto | 6,431.50 mi (10,350.49 km) |
| Boulder City to Isola del Liri | 6,169.05 mi (9,928.12 km) |
| Boulder City to Isola della Scala | 5,896.80 mi (9,489.98 km) |
| Boulder City to Isola Vicentina | 5,891.81 mi (9,481.96 km) |
| Boulder City to Ispica | 6,476.71 mi (10,423.26 km) |
| Boulder City to Istrana | 5,909.66 mi (9,510.68 km) |
| Boulder City to Itri | 6,188.90 mi (9,960.07 km) |
