| Detroit to Rivalta di Torino | 4,275.67 mi (6,881.03 km) |
| Detroit to Rivarolo Canavese | 4,272.56 mi (6,876.02 km) |
| Detroit to Rivoli | 4,274.30 mi (6,878.82 km) |
| Detroit to Rocca di Papa | 4,618.84 mi (7,433.30 km) |
| Detroit to Rocca Priora | 4,620.20 mi (7,435.50 km) |
| Detroit to Roccapiemonte | 4,742.53 mi (7,632.37 km) |
| Detroit to Roccastrada | 4,504.29 mi (7,248.96 km) |
| Detroit to Romano di Lombardia | 4,347.61 mi (6,996.80 km) |
| Detroit to Rome | 4,603.96 mi (7,409.36 km) |
| Detroit to Roncade | 4,447.80 mi (7,158.05 km) |
| Detroit to Ronchi dei Legionari | 4,483.45 mi (7,215.42 km) |
| Detroit to Ronciglione | 4,576.59 mi (7,365.30 km) |
| Detroit to Rosa | 4,420.07 mi (7,113.42 km) |
| Detroit to Rosarno | 4,894.50 mi (7,876.94 km) |
| Detroit to Rosignano Marittimo | 4,459.86 mi (7,177.46 km) |
