| Carlsbad to Racale | 6,638.33 mi (10,683.35 km) |
| Carlsbad to Racconigi | 6,043.89 mi (9,726.71 km) |
| Carlsbad to Raffadali | 6,626.51 mi (10,664.34 km) |
| Carlsbad to Ragusa | 6,693.84 mi (10,772.69 km) |
| Carlsbad to Ramacca | 6,668.10 mi (10,731.28 km) |
| Carlsbad to Randazzo | 6,649.69 mi (10,701.65 km) |
| Carlsbad to Rapallo | 6,116.90 mi (9,844.20 km) |
| Carlsbad to Ravanusa | 6,649.02 mi (10,700.57 km) |
| Carlsbad to Ravenna | 6,210.20 mi (9,994.35 km) |
| Carlsbad to Recanati | 6,307.10 mi (10,150.29 km) |
| Carlsbad to Recco | 6,113.27 mi (9,838.36 km) |
| Carlsbad to Reggello | 6,227.14 mi (10,021.62 km) |
| Carlsbad to Reggio di Calabria | 6,660.82 mi (10,719.55 km) |
| Carlsbad to Reggio Emilia | 6,144.89 mi (9,889.24 km) |
| Carlsbad to Reggiolo | 6,139.57 mi (9,880.69 km) |