| Houma to Rivalta di Torino | 5,171.63 mi (8,322.94 km) |
| Houma to Rivarolo Canavese | 5,170.96 mi (8,321.85 km) |
| Houma to Rivoli | 5,170.49 mi (8,321.10 km) |
| Houma to Rocca di Papa | 5,509.00 mi (8,865.88 km) |
| Houma to Rocca Priora | 5,510.63 mi (8,868.50 km) |
| Houma to Roccapiemonte | 5,632.79 mi (9,065.11 km) |
| Houma to Roccastrada | 5,397.54 mi (8,686.50 km) |
| Houma to Romano di Lombardia | 5,252.41 mi (8,452.93 km) |
| Houma to Rome | 5,494.19 mi (8,842.04 km) |
| Houma to Roncade | 5,359.88 mi (8,625.90 km) |
| Houma to Ronchi dei Legionari | 5,399.47 mi (8,689.61 km) |
| Houma to Ronciglione | 5,468.46 mi (8,800.64 km) |
| Houma to Rosa | 5,331.14 mi (8,579.64 km) |
| Houma to Rosarno | 5,775.12 mi (9,294.16 km) |
| Houma to Rosignano Marittimo | 5,353.53 mi (8,615.67 km) |
