| Olney to Mexborough | 3,567.34 mi (5,741.07 km) |
| Olney to Mickleover | 3,568.49 mi (5,742.93 km) |
| Olney to Middlesbrough | 3,548.56 mi (5,710.85 km) |
| Olney to Middleton | 3,530.60 mi (5,681.96 km) |
| Olney to Middlewich | 3,527.32 mi (5,676.67 km) |
| Olney to Midsomer Norton | 3,563.56 mi (5,734.99 km) |
| Olney to Mildenhall | 3,662.51 mi (5,894.25 km) |
| Olney to Milford Haven | 3,449.50 mi (5,551.44 km) |
| Olney to Mill Hill | 3,648.62 mi (5,871.88 km) |
| Olney to Milngavie | 3,408.08 mi (5,484.78 km) |
| Olney to Milnrow | 3,532.56 mi (5,685.10 km) |
| Olney to Milton | 3,542.03 mi (5,700.35 km) |
| Olney to Milton Keynes | 3,618.04 mi (5,822.68 km) |
| Olney to Minehead | 3,524.18 mi (5,671.61 km) |
| Olney to Minster | 3,695.33 mi (5,947.06 km) |
