| San Mateo to Rowlett (Texas) | 1,483.84 mi (2,388.00 km) |
| San Mateo to Roy (Utah) | 602.09 mi (968.98 km) |
| San Mateo to Royal Kunia (Hawaii) | 2,400.62 mi (3,863.43 km) |
| San Mateo to Royal Oak (Michigan) | 2,080.90 mi (3,348.89 km) |
| San Mateo to Royal Palm Beach (Florida) | 2,550.86 mi (4,105.21 km) |
| San Mateo to Royse City (Texas) | 1,495.06 mi (2,406.07 km) |
| San Mateo to Ruskin (Florida) | 2,399.13 mi (3,861.03 km) |
| San Mateo to Russellville (Alabama) | 1,932.97 mi (3,110.81 km) |
| San Mateo to Russellville (Arkansas) | 1,623.22 mi (2,612.32 km) |
| San Mateo to Ruston (Louisiana) | 1,706.69 mi (2,746.66 km) |
| San Mateo to Rutherford (New Jersey) | 2,558.95 mi (4,118.23 km) |
| San Mateo to Rutland (Vermont) | 2,583.84 mi (4,158.29 km) |
| San Mateo to Sabana Grande (Puerto Rico) | 3,582.60 mi (5,765.65 km) |
| San Mateo to Sachse (Texas) | 1,480.85 mi (2,383.19 km) |
| San Mateo to Saco (Maine) | 2,709.04 mi (4,359.78 km) |
