| Portsmouth to Rivalta di Torino | 563.05 mi (906.14 km) |
| Portsmouth to Rivarolo Canavese | 554.57 mi (892.50 km) |
| Portsmouth to Rivoli | 561.19 mi (903.15 km) |
| Portsmouth to Rocca di Papa | 905.26 mi (1,456.88 km) |
| Portsmouth to Rocca Priora | 906.12 mi (1,458.27 km) |
| Portsmouth to Roccapiemonte | 1,025.52 mi (1,650.42 km) |
| Portsmouth to Roccastrada | 788.57 mi (1,269.08 km) |
| Portsmouth to Romano di Lombardia | 617.86 mi (994.36 km) |
| Portsmouth to Rome | 890.73 mi (1,433.50 km) |
| Portsmouth to Roncade | 714.25 mi (1,149.48 km) |
| Portsmouth to Ronchi dei Legionari | 751.35 mi (1,209.17 km) |
| Portsmouth to Ronciglione | 861.19 mi (1,385.95 km) |
| Portsmouth to Rosa | 686.52 mi (1,104.84 km) |
| Portsmouth to Rosarno | 1,189.67 mi (1,914.58 km) |
| Portsmouth to Rosignano Marittimo | 744.80 mi (1,198.63 km) |
