| Duncan to Ross on Wye | 4,593.48 mi (7,392.49 km) |
| Duncan to Rossington | 4,601.90 mi (7,406.05 km) |
| Duncan to Rosyth | 4,440.22 mi (7,145.84 km) |
| Duncan to Rotherham | 4,592.49 mi (7,390.90 km) |
| Duncan to Rothwell | 4,578.17 mi (7,367.85 km) |
| Duncan to Rottingdean | 4,725.06 mi (7,604.25 km) |
| Duncan to Rowley Regis | 4,596.03 mi (7,396.59 km) |
| Duncan to Royal Leamington Spa | 4,621.45 mi (7,437.50 km) |
| Duncan to Royal Tunbridge Wells | 4,727.07 mi (7,607.48 km) |
| Duncan to Royal Wootton Bassett | 4,631.60 mi (7,453.85 km) |
| Duncan to Royston | 4,583.48 mi (7,376.40 km) |
| Duncan to Royston | 4,686.23 mi (7,541.76 km) |
| Duncan to Royton | 4,560.20 mi (7,338.93 km) |
| Duncan to Rugby | 4,629.39 mi (7,450.28 km) |
| Duncan to Rugeley | 4,591.76 mi (7,389.72 km) |
