Route from St Helens to Cardiff by car

From: St Helens, County: Merseyside, England
To: Cardiff, County: Cardiff, Wales
190 mi
3 h 18 min
Fuel consumption:
Fuel cost:
Passengers:



How many miles from St Helens to Cardiff?

How far is from St Helens to Cardiff?


The driving distance between St Helens and Cardiff is 190 miles. Travel time is 3 hours and 18 minutes by car.






190 mi 3 h 18 min
1.
Head north
74 ft
2.
Turn left onto Garswood Street
162 ft
3.
Turn right onto College Street (A571)
0.4 mi
4.
Continue onto Haresfinch Road (A571)
0.4 mi
5.
Turn left onto Haresfinch View (A571)
691 ft
6.
Enter the roundabout and take the 2nd exit onto Green Leach Lane (A571)
57 ft
7.
Exit the roundabout onto Green Leach Lane (A571)
0.3 mi
8.
Turn right to stay on East Lancashire Road (A580)
3.8 mi
9.
Take the ramp
441 ft
10.
Enter Haydock Island and take the 1st exit
102 ft
11.
Exit the roundabout
1278 ft
12.
Merge right onto M6
65 mi
13.
Keep left onto M6
9.4 mi
14.
Keep left onto M5
40 mi
15.
Take the ramp on the left
0.5 mi
16.
Enter Strensham Interchange and take the 2nd exit onto M50
1074 ft
17.
Exit the roundabout onto M50
21.4 mi
18.
Enter Travellers Rest and take the 1st exit onto A449
199 ft
19.
Exit the roundabout onto A449
0.5 mi
20.
Enter the roundabout and take the 3rd exit onto A40
240 ft
21.
Exit the roundabout onto A40
1.4 mi
22.
Enter Wilton Roundabout and take the 3rd exit onto A40
197 ft
23.
Exit the roundabout onto A40
9 mi
24.
Enter the roundabout and take the 2nd exit onto A40
193 ft
25.
Exit the roundabout onto A40
6.9 mi
26.
Continue onto A449
12.9 mi
27.
Take the ramp onto A449
1103 ft
28.
Continue onto M4
487 ft
29.
Keep left onto M4
8.4 mi
30.
Keep left onto A48(M)
5 mi
31.
Take the ramp on the left towards A4232: Cardiff
635 ft
32.
Keep left onto A48
631 ft
33.
Merge right onto Southern Way (A4232)
0.3 mi
34.
Take the ramp on the left
1001 ft
35.
Make a slight left onto A4161
66 ft
36.
Keep right onto A4161
1291 ft
37.
Enter the roundabout and take the 2nd exit onto Newport Road (A4161)
61 ft
38.
Exit the roundabout onto Newport Road (A4161)
1.8 mi
39.
Continue slightly right onto Dumfries Place (A4161)
698 ft
40.
Continue onto Stuttgarter Strasse (A4161)
635 ft
41.
Continue onto Boulevard de Nantes (A4161)
1109 ft
42.
Turn left onto North Road (A4161)
384 ft
43.
Continue onto Kingsway (A4161)
468 ft
44.
You have arrived at your destination
0 ft



How much does it cost to drive from St Helens to Cardiff?

The fuel cost by car depend on several factors such as the distance traveled, the driving conditions (traffic jam, slow driving, normal driving, race driving), fuel consumption of the vehicle, and the current price of fuel.

The trip with petrol fuel costs 33 £. In the above calculation, the petrol price is considered to be 143 pence per liter and the petrol consumption of the car is 37.5 miles per gallon.
For 2 passengers in carpooling, the cost of this trip is 16.5 £ (33/2) per passenger.
For 3 passengers in the car, the cost of this trip is 11 £ (33/3) per passenger.
For 4 passengers in the car, the cost of this trip are 8.25 £ (33/4) per passenger.


Fuel cost = (190.15 mi / 37.5 mpg) x 143 pence per liter = 33 £

In more detail, the result is obtained:

Fuel needed = Distance / Car fuel consumption = miles * 4.54609 / carConsumtion = 190.15 mi * 4.54609 / 37.5 mpg = 23.1 liters

Fuel needed = 23.1 lt

Fuel cost = Fuel needed x Price per liter = 23.1 liters x 143 pence per liter = 33 £

Fuel cost from St Helens to Cardiff = 33 £

Why do I multiply miles by 4.54609?

Consumption is measured in miles per gallon. 37.5 mpg means that a car could travel 37.5 miles with a gallon petrol fuel. The price of fuel is in pence per liter. Gallons should be converted to liters so that the final fuel consumption on a trip is in liters. 1 gallon is 4.54609 liters, so multiply by 4.54609.


The trip with diesel fuel costs 20.8 £. In the above calculation, the diesel price is considered to be 151 pence per liter and the diesel consumption of the car is 62.7 mpg. For only one passenger the cost of the trip is 20.8 £.
For 2 passengers in carpooling, the cost of this trip is 10.4 £ (20.8/2) per passenger.
For 3 passengers in the car, the cost of this trip is 6.93 £ (20.8/3) per passenger.
For 4 passengers in the car, the cost of this trip is 5.2 £ (20.8/4) per passenger.