| Tonypandy to McKeesport (Pennsylvania) | 3,577.03 mi (5,756.68 km) |
| Tonypandy to McKinleyville (California) | 5,116.20 mi (8,233.73 km) |
| Tonypandy to McKinney (Texas) | 4,588.74 mi (7,384.86 km) |
| Tonypandy to McLean (Virginia) | 3,530.87 mi (5,682.39 km) |
| Tonypandy to McMinnville (Oregon) | 4,847.61 mi (7,801.47 km) |
| Tonypandy to McMinnville (Tennessee) | 4,032.15 mi (6,489.12 km) |
| Tonypandy to McNair (Virginia) | 3,539.46 mi (5,696.22 km) |
| Tonypandy to McPherson (Kansas) | 4,366.57 mi (7,027.32 km) |
| Tonypandy to Mead Valley (California) | 5,307.44 mi (8,541.50 km) |
| Tonypandy to Meadow Woods (Florida) | 4,204.56 mi (6,766.58 km) |
| Tonypandy to Meadowbrook (Virginia) | 3,610.35 mi (5,810.29 km) |
| Tonypandy to Meadville (Pennsylvania) | 3,531.89 mi (5,684.04 km) |
| Tonypandy to Mebane (North Carolina) | 3,746.53 mi (6,029.45 km) |
| Tonypandy to Mechanicsville (Virginia) | 3,596.58 mi (5,788.14 km) |
| Tonypandy to Medford (Massachusetts) | 3,131.78 mi (5,040.11 km) |
