| Castelo Branco to Lye | 910.09 mi (1,464.65 km) |
| Castelo Branco to Lymington | 808.24 mi (1,300.74 km) |
| Castelo Branco to Lymm | 966.64 mi (1,555.65 km) |
| Castelo Branco to Mablethorpe | 1,003.07 mi (1,614.29 km) |
| Castelo Branco to Macclesfield | 961.92 mi (1,548.06 km) |
| Castelo Branco to Mackworth | 948.61 mi (1,526.64 km) |
| Castelo Branco to Madeley | 917.54 mi (1,476.64 km) |
| Castelo Branco to Maesteg | 835.43 mi (1,344.50 km) |
| Castelo Branco to Maghull | 970.44 mi (1,561.78 km) |
| Castelo Branco to Maidenhead | 871.59 mi (1,402.69 km) |
| Castelo Branco to Maidstone | 880.45 mi (1,416.95 km) |
| Castelo Branco to Maldon | 911.33 mi (1,466.64 km) |
| Castelo Branco to Maltby | 985.60 mi (1,586.16 km) |
| Castelo Branco to Manchester | 975.68 mi (1,570.20 km) |
| Castelo Branco to Mansfield | 967.53 mi (1,557.09 km) |
