| Port Huron to Rochefort | 3,839.92 mi (6,179.75 km) |
| Port Huron to Rodez | 4,044.01 mi (6,508.20 km) |
| Port Huron to Rognac | 4,187.69 mi (6,739.44 km) |
| Port Huron to Roissy-en-Brie | 3,893.28 mi (6,265.62 km) |
| Port Huron to Romainville | 3,881.52 mi (6,246.71 km) |
| Port Huron to Romans-sur-Isere | 4,122.22 mi (6,634.07 km) |
| Port Huron to Rombas | 4,013.09 mi (6,458.45 km) |
| Port Huron to Romilly-sur-Seine | 3,945.35 mi (6,349.44 km) |
| Port Huron to Ronchin | 3,850.65 mi (6,197.03 km) |
| Port Huron to Roncq | 3,847.08 mi (6,191.27 km) |
| Port Huron to Roquebrune-sur-Argens | 4,248.29 mi (6,836.96 km) |
| Port Huron to Roquevaire | 4,208.58 mi (6,773.05 km) |
| Port Huron to Rosny-sous-Bois | 3,884.02 mi (6,250.73 km) |
| Port Huron to Roubaix | 3,851.51 mi (6,198.41 km) |
| Port Huron to Rouen | 3,809.67 mi (6,131.07 km) |
