| Dumbarton to Racale | 1,509.31 mi (2,429.00 km) |
| Dumbarton to Racconigi | 939.68 mi (1,512.27 km) |
| Dumbarton to Raffadali | 1,531.87 mi (2,465.31 km) |
| Dumbarton to Ragusa | 1,591.95 mi (2,561.99 km) |
| Dumbarton to Ramacca | 1,563.30 mi (2,515.90 km) |
| Dumbarton to Randazzo | 1,539.78 mi (2,478.04 km) |
| Dumbarton to Rapallo | 1,003.90 mi (1,615.63 km) |
| Dumbarton to Ravanusa | 1,551.35 mi (2,496.65 km) |
| Dumbarton to Ravenna | 1,083.17 mi (1,743.19 km) |
| Dumbarton to Recanati | 1,179.53 mi (1,898.27 km) |
| Dumbarton to Recco | 1,000.74 mi (1,610.53 km) |
| Dumbarton to Reggello | 1,105.11 mi (1,778.51 km) |
| Dumbarton to Reggio di Calabria | 1,545.06 mi (2,486.53 km) |
| Dumbarton to Reggio Emilia | 1,021.98 mi (1,644.72 km) |
| Dumbarton to Reggiolo | 1,015.00 mi (1,633.49 km) |
