| Iowa City to Cernavoda | 5,417.79 mi (8,719.10 km) |
| Iowa City to Chitila | 5,341.11 mi (8,595.68 km) |
| Iowa City to Cisnadie | 5,219.29 mi (8,399.64 km) |
| Iowa City to Cluj-Napoca | 5,148.25 mi (8,285.31 km) |
| Iowa City to Codlea | 5,263.18 mi (8,470.26 km) |
| Iowa City to Comanesti | 5,259.11 mi (8,463.72 km) |
| Iowa City to Comarnic | 5,291.98 mi (8,516.62 km) |
| Iowa City to Constanta | 5,446.30 mi (8,764.97 km) |
| Iowa City to Corabia | 5,327.99 mi (8,574.57 km) |
| Iowa City to Costesti | 5,295.91 mi (8,522.94 km) |
| Iowa City to Covasna | 5,279.90 mi (8,497.18 km) |
| Iowa City to Craiova | 5,276.48 mi (8,491.67 km) |
| Iowa City to Cristuru Secuiesc | 5,219.86 mi (8,400.55 km) |
| Iowa City to Cugir | 5,186.33 mi (8,346.60 km) |
| Iowa City to Cumpana | 5,446.57 mi (8,765.40 km) |
