| Iowa City to Racale | 5,281.09 mi (8,499.10 km) |
| Iowa City to Racconigi | 4,661.89 mi (7,502.58 km) |
| Iowa City to Raffadali | 5,220.20 mi (8,401.11 km) |
| Iowa City to Ragusa | 5,291.29 mi (8,515.51 km) |
| Iowa City to Ramacca | 5,268.68 mi (8,479.12 km) |
| Iowa City to Randazzo | 5,255.48 mi (8,457.88 km) |
| Iowa City to Rapallo | 4,739.95 mi (7,628.22 km) |
| Iowa City to Ravanusa | 5,244.33 mi (8,439.94 km) |
| Iowa City to Ravenna | 4,851.41 mi (7,807.59 km) |
| Iowa City to Recanati | 4,947.96 mi (7,962.97 km) |
| Iowa City to Recco | 4,736.00 mi (7,621.85 km) |
| Iowa City to Reggello | 4,857.95 mi (7,818.12 km) |
| Iowa City to Reggio di Calabria | 5,272.74 mi (8,485.66 km) |
| Iowa City to Reggio Emilia | 4,779.10 mi (7,691.22 km) |
| Iowa City to Reggiolo | 4,776.78 mi (7,687.48 km) |
