| San Marino to Petaluma (California) | 379.87 mi (611.34 km) |
| San Marino to Petersburg (Virginia) | 2,278.32 mi (3,666.61 km) |
| San Marino to Pflugerville (Texas) | 1,222.39 mi (1,967.24 km) |
| San Marino to Pharr (Texas) | 1,307.96 mi (2,104.96 km) |
| San Marino to Phelan (California) | 40.12 mi (64.56 km) |
| San Marino to Phenix City (Alabama) | 1,906.13 mi (3,067.62 km) |
| San Marino to Philadelphia (Pennsylvania) | 2,380.83 mi (3,831.58 km) |
| San Marino to Phillipsburg (New Jersey) | 2,375.36 mi (3,822.78 km) |
| San Marino to Phoenix (Arizona) | 347.71 mi (559.59 km) |
| San Marino to Phoenixville (Pennsylvania) | 2,359.86 mi (3,797.83 km) |
| San Marino to Picayune (Mississippi) | 1,673.42 mi (2,693.12 km) |
| San Marino to Pickerington (Ohio) | 1,977.08 mi (3,181.81 km) |
| San Marino to Pico Rivera (California) | 9.25 mi (14.88 km) |
| San Marino to Piedmont (California) | 343.94 mi (553.52 km) |
| San Marino to Pierre (South Dakota) | 1,182.34 mi (1,902.80 km) |
