| Niagara Falls to Rochefort | 3,690.45 mi (5,939.21 km) |
| Niagara Falls to Rodez | 3,894.23 mi (6,267.15 km) |
| Niagara Falls to Rognac | 4,038.38 mi (6,499.14 km) |
| Niagara Falls to Roissy-en-Brie | 3,751.07 mi (6,036.77 km) |
| Niagara Falls to Romainville | 3,739.35 mi (6,017.91 km) |
| Niagara Falls to Romans-sur-Isere | 3,975.19 mi (6,397.45 km) |
| Niagara Falls to Rombas | 3,874.05 mi (6,234.68 km) |
| Niagara Falls to Romilly-sur-Seine | 3,803.35 mi (6,120.91 km) |
| Niagara Falls to Ronchin | 3,712.20 mi (5,974.21 km) |
| Niagara Falls to Roncq | 3,708.94 mi (5,968.97 km) |
| Niagara Falls to Roquebrune-sur-Argens | 4,099.88 mi (6,598.12 km) |
| Niagara Falls to Roquevaire | 4,059.31 mi (6,532.83 km) |
| Niagara Falls to Rosny-sous-Bois | 3,741.85 mi (6,021.93 km) |
| Niagara Falls to Roubaix | 3,713.29 mi (5,975.96 km) |
| Niagara Falls to Rouen | 3,667.70 mi (5,902.59 km) |
