| Iowa City to Recica | 4,867.80 mi (7,833.97 km) |
| Iowa City to Ribnica | 4,887.05 mi (7,864.95 km) |
| Iowa City to Ribnica | 4,870.93 mi (7,839.01 km) |
| Iowa City to Rogaska Slatina | 4,897.90 mi (7,882.41 km) |
| Iowa City to Rogasovci | 4,886.13 mi (7,863.46 km) |
| Iowa City to Rogatec | 4,900.64 mi (7,886.82 km) |
| Iowa City to Ruse | 4,879.59 mi (7,852.94 km) |
| Iowa City to Salovci | 4,894.63 mi (7,877.15 km) |
| Iowa City to Selnica ob Dravi | 4,878.27 mi (7,850.81 km) |
| Iowa City to Semic | 4,907.28 mi (7,897.50 km) |
| Iowa City to Sempeter pri Gorici | 4,838.47 mi (7,786.77 km) |
| Iowa City to Sencur | 4,853.10 mi (7,810.31 km) |
| Iowa City to Sentilj | 4,877.90 mi (7,850.22 km) |
| Iowa City to Sentjernej | 4,904.70 mi (7,893.36 km) |
| Iowa City to Sentjur | 4,889.77 mi (7,869.33 km) |
