Route from Portsmouth to Cardiff

The distance between Portsmouth and Cardiff is 149 miles. Travel time is 2 hours and 38 minutes.

From: Portsmouth, County: Hampshire, England
To: Cardiff, County: Cardiff, Wales
149 mi , 2 h 38 min
Tolls: Stations
Fuel consumption:
Fuel cost:
Passengers:



Route from Portsmouth to Cardiff on map



Driving directions from Portsmouth to Cardiff

149 mi 2 h 38 min
1.
Head east on Gruneisen Road
835 ft
2.
Turn left onto Twyford Avenue (A3)
40 ft
3.
Make a sharp right to stay on Stamshaw Road (A3)
0.5 mi
4.
Enter Rudmore Roundabout and take the 4th exit towards M275
612 ft
5.
Exit the roundabout towards M275
1.8 mi
6.
Take exit 12 towards M27: Southampton
970 ft
7.
Merge right onto M27
17.1 mi
8.
Take the ramp on the left towards M3
10.1 mi
9.
Take the ramp on the left towards A34
1252 ft
10.
Enter Winnall Interchange and take the 2nd exit onto Winchester Bypass (A34)
338 ft
11.
Exit the roundabout onto Winchester Bypass (A34)
25.7 mi
12.
Take the ramp on the left towards Hungerford
0.3 mi
13.
Enter Bath Road Junction and take the 3rd exit onto Ermin Street (B4000)
321 ft
14.
Exit the roundabout onto Ermin Street (B4000)
3.9 mi
15.
Continue onto Newbury Road (B4000)
1154 ft
16.
Continue onto Baydon Road (B4000)
2.2 mi
17.
Turn left onto A338
0.5 mi
18.
Enter Wickham Interchange and take the 3rd exit towards M4: South Wales
885 ft
19.
Exit the roundabout towards M4: South Wales
53 mi
20.
Keep right onto M4
24.6 mi
21.
Take the ramp on the left onto A48(M)
4.6 mi
22.
Make a slight left towards A4232: Cardiff
1010 ft
23.
Turn left onto Southern Way (A4232)
0.4 mi
24.
Make a slight left
1120 ft
25.
Make a slight left onto A4161
66 ft
26.
Keep right onto A4161
1291 ft
27.
Enter the roundabout and take the 2nd exit onto Newport Road (A4161)
61 ft
28.
Exit the roundabout onto Newport Road (A4161)
1.8 mi
29.
Continue slightly right onto Dumfries Place (A4161)
698 ft
30.
Continue onto Stuttgarter Strasse (A4161)
635 ft
31.
Continue onto Boulevard de Nantes (A4161)
1101 ft
32.
Turn left onto North Road (A4161)
390 ft
33.
Continue onto Kingsway (A4161)
466 ft
34.
You have arrived at your destination
0 ft


How much does it cost to drive from Portsmouth to Cardiff?

Well, using petrol, it's £25.8. The petrol price we're talking about here is 143 pence per liter, and the car guzzles up 37.5 miles per gallon. Now, if you're carpooling with two buddies, each of you only chips in £12.9 for the trip (£25.8 divided by 2). With three mates, it's about £8.6 each (£25.8 divided by 3), and if you've got a full car of four, it's only £6.45 each (£25.8 divided by 4). The fuel cost for the journey is calculated based on how far you're driving and how much fuel your car drinks up. So, for this journey, you'd need about 18.1 liters of fuel. And that's where the £25.8 comes from for the trip from Portsmouth to Cardiff.


Diesel cost from Portsmouth to Cardiff.

The trip with diesel fuel costs 16.3 £ (151p/lt, 62.7 mpg).
For 2 passengers: 8.15 £ (16.3/2) /p.
For 3 passengers: 5.43 £ (16.3/3) /p.
For 4 passengers: 4.08 £ (16.3/4) /p.

For these reasons, diesel cars use less fuel than petrol cars:

Diesel fuel has more energy per litre than petrol. Diesel engines can drive farther and provide more power for the same fuel volume, reducing fuel consumption.

Diesel engines have higher compression ratios than petrol engines, increasing thermal efficiency. Diesel engines get more energy from each fuel unit due to this increased compression ratio. Because diesel engines are thermally efficient, they use less fuel.

Diesel engines create more torque at lower RPM than petrol engines. Diesel vehicles require less throttle input to maintain speed, which improves fuel efficiency, especially during steady-state driving.

Diesel cars consume less fuel than petrol cars due to these considerations.


Alternative routes from Portsmouth to Cardiff

The second route from Portsmouth to the Cardiff is 159.81 miles and takes 3 hours and 1 minute.

The third route from Portsmouth to the Cardiff is 167.27 miles and takes 3 hours and 28 minutes.


Which is the cheapest route from Portsmouth to Cardiff by car?

The cheapest route from Portsmouth to Cardiff is the first suggested route (149mi, 2h 38min) and costs 25.8 £ (petrol fuel cost, 143p/lt, 37.5mpg).

The second cheapest route from Portsmouth to Cardiff is the second suggested route (160mi, 3h 1min) and costs 27.7 £.

The most expensive route from Portsmouth to Cardiff is the third suggested route (167mi, 3h 28min) and costs 29 £.

For greater safety, the driver should choose the route that passes through the highway (median barrier) and not through smaller roads (curves in the road, bad road conditions, no median barrier).


How to get from Portsmouth to Cardiff?

There are three suggested routes. The fastest route is 149mi (distance from Portsmouth to Cardiff) and its duration is 2h 38min. The other route is 160mi, and its duration is 3h 1min. The slowest route is 167mi, and its duration is 3h 28min.

RouteCalculator provides you with the information to prepare your trip from Portsmouth to Cardiff by car or motorbike. It offers you alternative road routes that you can follow to go from Portsmouth to Cardiff. It provides driving directions from Portsmouth to Cardiff, i.e. where to turn and when, distance of the Portsmouth - Cardiff route, travel time, display of the route on the map, fuel cost (petrol, diesel) and toll (if exist) cost.

In case you share the journey (carpooling) from Portsmouth to Cardiff with other people or friends, RouteCalculator provides the cost of the journey and the amount that each passenger will have to pay.


Where is Portsmouth located?

Portsmouth is located in Hampshire county and in England. It is situated at an altitude of 4 meters above sea level. Portsmouth has coordinates 50.8197675o,-1.0879769o. RouteCalculator provides a map of Portsmouth from which you can plan your trips to other UK cities.


What is the location of Cardiff?

Cardiff is located in Cardiff county and in Wales. It is situated at an altitude of 12 meters above sea level. Cardiff has coordinates 51.4815810o,-3.1790900o. RouteCalculator provides a map of Cardiff from which you can plan your trips to other UK cities.