| Iowa City to Rochefort | 4,270.36 mi (6,872.47 km) |
| Iowa City to Rodez | 4,474.63 mi (7,201.22 km) |
| Iowa City to Rognac | 4,616.97 mi (7,430.30 km) |
| Iowa City to Roissy-en-Brie | 4,307.71 mi (6,932.59 km) |
| Iowa City to Romainville | 4,295.92 mi (6,913.62 km) |
| Iowa City to Romans-sur-Isere | 4,546.64 mi (7,317.11 km) |
| Iowa City to Rombas | 4,420.08 mi (7,113.43 km) |
| Iowa City to Romilly-sur-Seine | 4,359.18 mi (7,015.42 km) |
| Iowa City to Ronchin | 4,256.90 mi (6,850.82 km) |
| Iowa City to Roncq | 4,252.63 mi (6,843.95 km) |
| Iowa City to Roquebrune-sur-Argens | 4,675.43 mi (7,524.37 km) |
| Iowa City to Roquevaire | 4,637.70 mi (7,463.65 km) |
| Iowa City to Rosny-sous-Bois | 4,298.41 mi (6,917.63 km) |
| Iowa City to Roubaix | 4,257.24 mi (6,851.36 km) |
| Iowa City to Rouen | 4,223.88 mi (6,797.67 km) |
