| Knoxville to Racale | 5,227.13 mi (8,412.26 km) |
| Knoxville to Racconigi | 4,601.17 mi (7,404.87 km) |
| Knoxville to Raffadali | 5,123.56 mi (8,245.58 km) |
| Knoxville to Ragusa | 5,196.75 mi (8,363.36 km) |
| Knoxville to Ramacca | 5,177.60 mi (8,332.55 km) |
| Knoxville to Randazzo | 5,169.59 mi (8,319.66 km) |
| Knoxville to Rapallo | 4,681.93 mi (7,534.84 km) |
| Knoxville to Ravanusa | 5,148.74 mi (8,286.09 km) |
| Knoxville to Ravenna | 4,806.58 mi (7,735.44 km) |
| Knoxville to Recanati | 4,900.42 mi (7,886.47 km) |
| Knoxville to Recco | 4,677.78 mi (7,528.15 km) |
| Knoxville to Reggello | 4,803.95 mi (7,731.21 km) |
| Knoxville to Reggio di Calabria | 5,192.14 mi (8,355.94 km) |
| Knoxville to Reggio Emilia | 4,730.03 mi (7,612.25 km) |
| Knoxville to Reggiolo | 4,730.37 mi (7,612.79 km) |
