| Southwick to Mexborough | 189.25 mi (304.56 km) |
| Southwick to Mickleover | 153.27 mi (246.67 km) |
| Southwick to Middlesbrough | 261.80 mi (421.32 km) |
| Southwick to Middleton | 205.16 mi (330.18 km) |
| Southwick to Middlewich | 187.82 mi (302.26 km) |
| Southwick to Midsomer Norton | 102.19 mi (164.46 km) |
| Southwick to Mildenhall | 109.06 mi (175.52 km) |
| Southwick to Milford Haven | 216.27 mi (348.05 km) |
| Southwick to Mill Hill | 54.17 mi (87.18 km) |
| Southwick to Milngavie | 390.55 mi (628.53 km) |
| Southwick to Milnrow | 207.39 mi (333.76 km) |
| Southwick to Milton | 173.10 mi (278.58 km) |
| Southwick to Milton Keynes | 86.16 mi (138.66 km) |
| Southwick to Minehead | 142.86 mi (229.91 km) |
| Southwick to Minster | 60.82 mi (97.87 km) |
