| Gaithersburg to Plattsburgh (New York) | 429.89 mi (691.85 km) |
| Gaithersburg to Pleasant Grove (Utah) | 1,824.43 mi (2,936.14 km) |
| Gaithersburg to Pleasant Hill (California) | 2,400.74 mi (3,863.61 km) |
| Gaithersburg to Pleasant Hill (Iowa) | 872.41 mi (1,404.01 km) |
| Gaithersburg to Pleasant Prairie (Wisconsin) | 604.80 mi (973.33 km) |
| Gaithersburg to Pleasant View (Utah) | 1,828.99 mi (2,943.48 km) |
| Gaithersburg to Pleasanton (California) | 2,396.12 mi (3,856.19 km) |
| Gaithersburg to Pleasanton (Texas) | 1,401.28 mi (2,255.14 km) |
| Gaithersburg to Pleasantville (New Jersey) | 145.31 mi (233.85 km) |
| Gaithersburg to Plover (Wisconsin) | 732.68 mi (1,179.14 km) |
| Gaithersburg to Plum (Pennsylvania) | 164.46 mi (264.67 km) |
| Gaithersburg to Plymouth (Indiana) | 503.72 mi (810.65 km) |
| Gaithersburg to Plymouth (Minnesota) | 925.01 mi (1,488.66 km) |
| Gaithersburg to Pocatello (Idaho) | 1,842.50 mi (2,965.22 km) |
| Gaithersburg to Poinciana (Florida) | 799.29 mi (1,286.34 km) |
