| North Potomac to Racale | 4,803.95 mi (7,731.21 km) |
| North Potomac to Racconigi | 4,178.08 mi (6,723.97 km) |
| North Potomac to Raffadali | 4,697.67 mi (7,560.18 km) |
| North Potomac to Ragusa | 4,770.91 mi (7,678.04 km) |
| North Potomac to Ramacca | 4,751.91 mi (7,647.46 km) |
| North Potomac to Randazzo | 4,744.15 mi (7,634.97 km) |
| North Potomac to Rapallo | 4,259.00 mi (6,854.21 km) |
| North Potomac to Ravanusa | 4,722.88 mi (7,600.74 km) |
| North Potomac to Ravenna | 4,384.88 mi (7,056.79 km) |
| North Potomac to Recanati | 4,478.30 mi (7,207.12 km) |
| North Potomac to Recco | 4,254.83 mi (6,847.49 km) |
| North Potomac to Reggello | 4,381.27 mi (7,050.97 km) |
| North Potomac to Reggio di Calabria | 4,766.97 mi (7,671.69 km) |
| North Potomac to Reggio Emilia | 4,307.97 mi (6,933.01 km) |
| North Potomac to Reggiolo | 4,308.61 mi (6,934.04 km) |
