| Potters Bar to McKeesport (Pennsylvania) | 3,706.48 mi (5,965.00 km) |
| Potters Bar to McKinleyville (California) | 5,205.02 mi (8,376.68 km) |
| Potters Bar to McKinney (Texas) | 4,713.07 mi (7,584.95 km) |
| Potters Bar to McLean (Virginia) | 3,662.96 mi (5,894.97 km) |
| Potters Bar to McMinnville (Oregon) | 4,932.80 mi (7,938.57 km) |
| Potters Bar to McMinnville (Tennessee) | 4,161.93 mi (6,697.98 km) |
| Potters Bar to McNair (Virginia) | 3,671.44 mi (5,908.60 km) |
| Potters Bar to McPherson (Kansas) | 4,485.45 mi (7,218.63 km) |
| Potters Bar to Mead Valley (California) | 5,411.65 mi (8,709.21 km) |
| Potters Bar to Meadow Woods (Florida) | 4,341.01 mi (6,986.18 km) |
| Potters Bar to Meadowbrook (Virginia) | 3,743.43 mi (6,024.48 km) |
| Potters Bar to Meadville (Pennsylvania) | 3,659.94 mi (5,890.10 km) |
| Potters Bar to Mebane (North Carolina) | 3,879.65 mi (6,243.69 km) |
| Potters Bar to Mechanicsville (Virginia) | 3,729.59 mi (6,002.20 km) |
| Potters Bar to Medford (Massachusetts) | 3,264.04 mi (5,252.96 km) |
