Your Route From Romsey SO51 to Pembrey SA16
Route Summary
187 mi
3 hours 30 mins
9
33 Miles
43 Minutes
Recommended travel books and guides
2026 Philip's Big Easy to Read Britain Road Atlas
The Great British Bucket List: Utterly Unmissable Britain
Where to Go When Great Britain and Ireland
Grand Adventure Map: The ultimate map for travels around the UK
Great British Walkies: 100 brilliant dog walks
AA Easy Read Britain 2026 flexi bound
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Route Map
Service Areas Along Route
Tot Hill services
A34 Newbury Bypass, Burghclere, Newbury, Hampshire, RG20 9BX
Chieveley services
Moto Hospitality Ltd, Chieveley Motorway Services Area, Oxford Road, Hermitage, Thatcham, Berkshire, RG18 9XX
Membury
Welcome Break, M4 Services, Membury Motorway Services Area, Lambourn, Hungerford, Berkshire, RG17 7TZ
Leigh Delamere
Granada Hospitality Ltd, Leigh Delamere Motorway Services Area, M4, Leigh Delamere, Chippenham, Wiltshire, SN14 6LB
Magor
Magor Motorway Services Area, M4, Magor, Caldicot, Monmouthshire, NP26 3YL
Cardiff Gate
Welcome Break Services, Malthouse Avenue, Cardiff Gate Business Park, Pontprennau, Cardiff, South Glamorgan, CF23 8RA
Cardiff West
Moto Services, Cardiff West Motorway Services Area, M4, Pontyclun, Mid Glamorgan, CF72 8SA
Sarn Park
Sarn Park Motorway Services, Sarn Park Motorway Services Area, M4, Sarn, Bridgend, CF32 9SY
Swansea West
M O T O, Swansea West Services, M4 Junction 47, Penllergaer, Swansea, West Glamorgan, SA4 9GT
Recommended motoring accessories for your car
HOTOR Car Boot Organiser
Car Breakdown Emergency Kit
Lewis-Plast Premium 92 Piece First Aid Kit
Car Seat Organiser
Zacro Car Bin with 5 Garbage Bags
AA Euro Travel Kit AA6318
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Step-by-Step Directions
Head north towards Budds Ln
0.0
Turn right onto Budds Ln
0.25
Turn left onto Greatbridge Rd/
9.5
At the roundabout, take the 3rd exit onto A30
0.25
At the roundabout, take the 2nd exit onto London Rd/
7.0
At the roundabout, take the 1st exit and stay on A30
0.0
At the roundabout, take the 1st exit onto Bullington Ln/
1.25
At Bullington Cross, take the 2nd exit onto A30
0.5
At the roundabout, take the 1st exit onto the A34 slip road to Newbury
0.0
Merge onto A34
20.25
Tot Hill services A34 Newbury Bypass, Burghclere, Newbury, Hampshire, RG20 9BX
Take the exit towards Chieveley
0.5
Chieveley services Moto Hospitality Ltd, Chieveley Motorway Services Area, Oxford Road, Hermitage, Thatcham, Berkshire, RG18 9XX
At the roundabout, take the 1st exit onto the M4 slip road to S Wales/
0.25
Merge onto M4
136.75
Membury Welcome Break, M4 Services, Membury Motorway Services Area, Lambourn, Hungerford, Berkshire, RG17 7TZ
Leigh Delamere Granada Hospitality Ltd, Leigh Delamere Motorway Services Area, M4, Leigh Delamere, Chippenham, Wiltshire, SN14 6LB
Magor Magor Motorway Services Area, M4, Magor, Caldicot, Monmouthshire, NP26 3YL
Cardiff Gate Welcome Break Services, Malthouse Avenue, Cardiff Gate Business Park, Pontprennau, Cardiff, South Glamorgan, CF23 8RA
Cardiff West Moto Services, Cardiff West Motorway Services Area, M4, Pontyclun, Mid Glamorgan, CF72 8SA
Sarn Park Sarn Park Motorway Services, Sarn Park Motorway Services Area, M4, Sarn, Bridgend, CF32 9SY
Swansea West M O T O, Swansea West Services, M4 Junction 47, Penllergaer, Swansea, West Glamorgan, SA4 9GT
Last minute travel essentials
Hiluckey Power Bank Portable Charger - 22.5W Fast Charging
BAGAIL Microfibre Travel Towel, Perfect Travel Towel
Mini Travel Pillow, Soft Down Alternative Pillows
Teskyer Electronics Accessories Organiser Bag, Waterproof
NTONPOWER Travel Extension Lead, travel Essentials
Travel Pillow Neck Pillow Memory Foam Travel Pillow
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At junction 48, exit onto Pontarddulais Rd/
1.5
At the roundabout, take the 2nd exit and stay on A4138
1.5
At the roundabout, take the 3rd exit
0.75
Continue onto Llethri Rd
0.5
Turn left onto Millfield Rd/
1.25
Continue onto Thomas St
0.0
Turn right onto Gelli-Onn/
0.0
Slight right onto Hall St/
0.5
At the roundabout, take the 3rd exit onto Sandy Rd/
0.25
At the roundabout, take the 1st exit and stay on Sandy Rd/
2.25
At the roundabout, take the 2nd exit onto Pwll Rd/
1.25
Turn left onto Gwscwm Park
0.0
Turn right to stay on Gwscwm Park
0.0
Arrive at your destination
Don't forget in-car food and drink essentials
HASAGEI Travel Mug, Insulated Coffee Cup with Leakproof Lid
SUNWILL Metal Water Bottle Stainless Steel 500ml
Thermos - Stainless King Red Travel Flask (1.2L)
Super Sparrow Water Bottle Stainless Steel - Insulated
Volhoply 14oz Insulated Stainless Steel Coffee Mug
BeneLabel Snack Box, Stackable Snack Pot 4 Compartments
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