Your Route From Romford RM3 to Cardiff CF24
Route Summary
185 mi
3 hours 12 mins
6
53 Miles
53 Minutes
Recommended travel books and guides
Lonely Planet Best Road Trips Great Britain
52 Great British Weekends: A Year of Mini Adventures
Where to Go When Great Britain and Ireland
Great British Walkies: 100 brilliant dog walks
2026 Philip's Big Easy to Read Britain Road Atlas
AA Easy Read Britain 2026 flexi bound
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Route Map
Service Areas Along Route
South Mimms
The Welcome Break, Welcome Break Service Station, Bignell's Corner, South Mimms, Potters Bar, Hertfordshire, EN6 3QQ
Reading
Reading Motorway Service Area, Burghfield, Reading, Berkshire, RG30 3UQ
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
Recommended motoring accessories for your car
iZEEKER 2.5K Dash Cam, 1440P QHD Car Camera
Car Breakdown Emergency Kit
Lewis-Plast Premium 92 Piece First Aid Kit
AA Euro Travel Kit AA6318
LISEN Retractable Car Phone Charger
Car Seat Organiser
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Step-by-Step Directions
Head north on Avenue Rd towards Blanchard Mews
0.25
Turn left onto Colchester Rd/
0.0
Make a U-turn
1.0
Keep left
0.5
At the roundabout, take the 1st exit onto the M25 slip road to M11/
0.5
Take the slip road onto M25
50.25
South Mimms The Welcome Break, Welcome Break Service Station, Bignell's Corner, South Mimms, Potters Bar, Hertfordshire, EN6 3QQ
Last minute travel essentials
Travel Pillow Neck Pillow Memory Foam Travel Pillow
Mini Travel Pillow, Soft Down Alternative Pillows
Rainberg Microfiber towel (180x90cm), Fast Drying
BAGAIL Microfibre Travel Towel, Perfect Travel Towel
Pill Organizer,Pill Dispenser With 7 Large Compartments
NTONPOWER Travel Extension Lead, travel Essentials
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At junction 15, exit onto M4 towards Slough
124.75
Reading Reading Motorway Service Area, Burghfield, Reading, Berkshire, RG30 3UQ
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
Slight left onto A48(M) (signs for Cardiff (E)/
2.5
Continue onto Eastern Ave/
2.5
Take the A4232 slip road to Cardiff (E)/
0.25
At the roundabout, take the 1st exit onto Southern Way/
0.5
Take the A4161 exit towards City Centre/
0.25
At the roundabout, take the 2nd exit onto Newport Rd/
1.75
Arrive at your destination
Don't forget in-car food and drink essentials
SUNWILL Metal Water Bottle Stainless Steel 500ml
Sistema KLIP IT PLUS Leakproof Food Storage Containers
BeneLabel Snack Box, Stackable Snack Pot 4 Compartments
Thermos - Stainless King Red Travel Flask (1.2L)
Super Sparrow Water Bottle Stainless Steel - Insulated
Travel Mugs,KETIEE 380ml Insulated Coffee Cup with Leakproof Lid
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