| No access |- style="text-align:center;" | 67.2||108.1 | Winchester A3090 Twyford B3335 | J11 | Winchester A3090Twyford B3335 |- style="text-align:center;" | 70.0||112.6 | Eastleigh (North) A335 | J12 | Eastleigh (North), Chandler's Ford A335 |- style="text-align:center;" | 71.8||115.6 | Eastleigh, Chandler's Ford A335 | J13 | Bournemouth M27(W) Eastleigh A335 |- style="text-align:center;" | | | Start of motorway | J14 | Southampton , Portsmouth M27(E)The West, Southampton Docks, Southampton A33 |- |colspan=5|Notes Distances in kilometres and carriageway identifiers are obtained from driver location signs/location marker posts. Where a junction spans several hundred metres and the data is available, both the start and finish values for the junction are shown. |- See also List of motorways in the United Kingdom Notes and references Notes References External links Chris's British Road Directory Motorway Database – M3 'Bad Junctions' – M3/A31 (Winchester) The Motorway Archive – M3 Motorways in England Transport in Surrey Transport in Hampshire Roads in Surrey