| Greenock to Pell City (Alabama) | 4,021.06 mi (6,471.28 km) |
| Greenock to Pella (Iowa) | 3,858.13 mi (6,209.05 km) |
| Greenock to Pembroke Pines (Florida) | 4,196.85 mi (6,754.18 km) |
| Greenock to Pendleton (Oregon) | 4,444.40 mi (7,152.57 km) |
| Greenock to Pensacola (Florida) | 4,221.00 mi (6,793.04 km) |
| Greenock to Peoria (Arizona) | 4,926.71 mi (7,928.77 km) |
| Greenock to Peoria (Illinois) | 3,774.17 mi (6,073.94 km) |
| Greenock to Perris (California) | 5,082.42 mi (8,179.36 km) |
| Greenock to Perry (Georgia) | 3,982.39 mi (6,409.04 km) |
| Greenock to Perry Hall (Maryland) | 3,355.73 mi (5,400.53 km) |
| Greenock to Perrysburg (Ohio) | 3,518.87 mi (5,663.08 km) |
| Greenock to Perth Amboy (New Jersey) | 3,218.42 mi (5,179.55 km) |
| Greenock to Peru (Indiana) | 3,646.04 mi (5,867.73 km) |
| Greenock to Petal (Mississippi) | 4,249.46 mi (6,838.84 km) |
| Greenock to Petaluma (California) | 4,981.67 mi (8,017.22 km) |
