Portsmouth Caerphilly by car, distance and driving time

The distance between Portsmouth and Caerphilly by car is 155 miles. The driving time is 2 hours and 43 minutes.

How far is Caerphilly from Portsmouth? The driving distance is 155 miles, depending on the selected route and traffic conditions.

From: Portsmouth, County: Hampshire, England
To: Caerphilly, County: Cardiff, Wales
155 mi , 2 h 43 min
Tolls: 0£ Stations
Fuel consumption:
Fuel cost:
Passengers:



Route from Portsmouth to Caerphilly on map



Driving directions from Portsmouth to Caerphilly

155 mi 2 h 43 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
32.2 mi
21.
Take the ramp on the left towards Cardiff North
0.4 mi
22.
Go straight onto Northern Avenue (A470)
2.8 mi
23.
Take the ramp on the left
701 ft
24.
Enter Nantgarw Interchange and take the 3rd exit onto Caerphilly Road (A468)
508 ft
25.
Exit the roundabout onto Caerphilly Road (A468)
1.1 mi
26.
Keep left onto Caerphilly Road (A468)
150 ft
27.
Enter Penrhos Roundabout and take the 3rd exit onto Nantgarw Road
443 ft
28.
Exit the roundabout onto Nantgarw Road
1075 ft
29.
Enter the roundabout and take the 2nd exit onto Nantgarw Road (B4600)
112 ft
30.
Exit the roundabout onto Nantgarw Road (B4600)
1.2 mi
31.
Turn left onto Pontygwindy Road (B4623)
286 ft
32.
You have arrived at your destination
0 ft


How much does it cost to drive from Portsmouth to Caerphilly with petrol?

Let's delve into the expenses of a road trip from Portsmouth to Caerphilly. The journey using petrol will set you back 27 pounds. Now, let's walk through how we arrived at this figure.

Firstly, we consider the price of petrol, which is 144 pence per liter. Next, we take into account the car's fuel consumption rate, which stands at 37.5 miles per gallon.

Now, suppose you're carpooling. If there are two passengers sharing the ride, each person will contribute 13.5 pounds (£27 divided by 2). With three passengers, the cost per person drops to around 9 pounds (£27 divided by 3). And if there are four passengers onboard, each person chips in 6.75 pounds (£27 divided by 4).

Let's delve deeper into the calculations. To determine how much fuel is needed for the trip, we rely on the distance and the car's fuel efficiency. The distance between Portsmouth and Caerphilly is approximately 154.57 miles. So, to cover this distance, the car will require roughly 18.7 liters of petrol. We obtained this value by dividing the distance by the car's fuel consumption rate of 37.5 miles per gallon and then converting it to liters.

Once we have the amount of fuel needed, we calculate the total cost. Multiplying the fuel quantity (18.7 liters) by the price per liter (144 pence) yields 27 pounds. Therefore, the fuel cost for the journey from Portsmouth to Caerphilly is 27 pounds.
 

Diesel cost from Portsmouth to Caerphilly.

The trip with diesel fuel costs 18.7 £ (167p/lt, 62.7 mpg).
For 2 passengers: 9.35 £ (18.7/2) /p.
For 3 passengers: 6.23 £ (18.7/3) /p.
For 4 passengers: 4.68 £ (18.7/4) /p.

In general, diesel engines tend to have lower fuel consumption compared to petrol engines, all else being equal. This is primarily due to the higher energy density of diesel fuel and the higher thermal efficiency of diesel engines. Diesel fuel contains more energy per liter than petrol, and diesel engines are typically more efficient at converting that energy into mechanical work.

Additionally, diesel engines operate at higher compression ratios, which improves their thermal efficiency and allows them to extract more energy from each unit of fuel. As a result, diesel vehicles often achieve better fuel economy and can travel farther on a gallon or liter of fuel compared to petrol vehicles of similar size and performance.

Alternative routes from Portsmouth to Caerphilly

The second route from Portsmouth to the Caerphilly is 165.42 miles and takes 3 hours and 6 minutes.

The third route from Portsmouth to the Caerphilly is 166.94 miles and takes 3 hours and 29 minutes.

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

The cheapest route from Portsmouth to Caerphilly is the first suggested route (155mi, 2h 43min) and costs 27 £ (petrol fuel cost, 144p/lt, 37.5mpg).

The second cheapest route from Portsmouth to Caerphilly is the second suggested route (165mi, 3h 6min) and costs 28.9 £.

The most expensive route from Portsmouth to Caerphilly is the third suggested route (167mi, 3h 29min) and costs 29.1 £.

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 Caerphilly?

There are three suggested routes. The fastest route is 155mi (distance from Portsmouth to Caerphilly) and its duration is 2h 43min. The other route is 165mi, and its duration is 3h 6min. The slowest route is 167mi, and its duration is 3h 29min.

RouteCalculator provides you with the information to prepare your trip from Portsmouth to Caerphilly by car or motorbike. It offers you alternative road routes that you can follow to go from Portsmouth to Caerphilly. It provides driving directions from Portsmouth to Caerphilly, i.e. where to turn and when, distance of the Portsmouth - Caerphilly 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 Caerphilly 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 Caerphilly?

Caerphilly is located in Cardiff county and in Wales. It is situated at an altitude of 79 meters above sea level. Caerphilly has coordinates 51.5788290o,-3.2181340o. RouteCalculator provides a map of Caerphilly from which you can plan your trips to other UK cities.