| Niagara Falls to Racale | 4,720.08 mi (7,596.23 km) |
| Niagara Falls to Racconigi | 4,095.27 mi (6,590.71 km) |
| Niagara Falls to Raffadali | 4,635.87 mi (7,460.70 km) |
| Niagara Falls to Ragusa | 4,708.21 mi (7,577.13 km) |
| Niagara Falls to Ramacca | 4,687.30 mi (7,543.49 km) |
| Niagara Falls to Randazzo | 4,676.77 mi (7,526.53 km) |
| Niagara Falls to Rapallo | 4,175.11 mi (6,719.19 km) |
| Niagara Falls to Ravanusa | 4,660.59 mi (7,500.49 km) |
| Niagara Falls to Ravenna | 4,294.61 mi (6,911.51 km) |
| Niagara Falls to Recanati | 4,389.82 mi (7,064.73 km) |
| Niagara Falls to Recco | 4,171.03 mi (6,712.62 km) |
| Niagara Falls to Reggello | 4,295.76 mi (6,913.37 km) |
| Niagara Falls to Reggio di Calabria | 4,696.87 mi (7,558.88 km) |
| Niagara Falls to Reggio Emilia | 4,219.58 mi (6,790.76 km) |
| Niagara Falls to Reggiolo | 4,218.83 mi (6,789.55 km) |
