| Rancho Santa Margarita to Ramsey (New Jersey) | 2,415.54 mi (3,887.44 km) |
| Rancho Santa Margarita to Rancho Cordova (California) | 397.65 mi (639.95 km) |
| Rancho Santa Margarita to Rancho Cucamonga (California) | 34.11 mi (54.89 km) |
| Rancho Santa Margarita to Rancho Mirage (California) | 67.97 mi (109.38 km) |
| Rancho Santa Margarita to Rancho Palos Verdes (California) | 44.78 mi (72.06 km) |
| Rancho Santa Margarita to Rancho San Diego (California) | 71.76 mi (115.49 km) |
| Rancho Santa Margarita to Randallstown (Maryland) | 2,280.57 mi (3,670.23 km) |
| Rancho Santa Margarita to Rantoul (Illinois) | 1,680.79 mi (2,704.97 km) |
| Rancho Santa Margarita to Rapid City (South Dakota) | 1,054.87 mi (1,697.64 km) |
| Rancho Santa Margarita to Ravenna (Ohio) | 2,046.25 mi (3,293.13 km) |
| Rancho Santa Margarita to Raymondville (Texas) | 1,281.59 mi (2,062.53 km) |
| Rancho Santa Margarita to Raymore (Missouri) | 1,334.41 mi (2,147.52 km) |
| Rancho Santa Margarita to Raytown (Missouri) | 1,336.09 mi (2,150.23 km) |
| Rancho Santa Margarita to Reading (Ohio) | 1,872.85 mi (3,014.06 km) |
| Rancho Santa Margarita to Reading (Pennsylvania) | 2,324.06 mi (3,740.22 km) |
