Route from Portsmouth to Dumbarton by car

From: Portsmouth, County: Hampshire, England
To: Dumbarton, County: West Dunbartonshire, Scotland
461 mi
7 h 38 min
Fuel consumption:
Fuel cost:
Passengers:



How many miles from Portsmouth to Dumbarton?

How far is from Portsmouth to Dumbarton?


The driving distance between Portsmouth and Dumbarton is 461 miles. Travel time is 7 hours and 38 minutes by car.






461 mi 7 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
612 ft
5.
Exit the roundabout
0.3 mi
6.
Merge right onto M275
1.5 mi
7.
Take the ramp
738 ft
8.
Merge right onto M27
17.1 mi
9.
Take the ramp on the left towards M3
10.1 mi
10.
Take the ramp on the left towards A34
1257 ft
11.
Enter Winnall Interchange and take the 2nd exit onto Winchester By-Pass (A34)
330 ft
12.
Exit the roundabout onto Winchester By-Pass (A34)
62 mi
13.
Enter Wendlebury Interchange and take the 1st exit towards M40: Northampton
109 ft
14.
Exit the roundabout towards M40: Northampton
44.4 mi
15.
Take exit 3A on the left towards M42 North: Birmingham (E
11.1 mi
16.
Take the ramp on the left towards M6: M6(N)
0.9 mi
17.
Merge left onto M6
12.1 mi
18.
Keep right onto M6
7.9 mi
19.
Keep right onto M6
72 mi
20.
Keep right onto M6
116 mi
21.
Continue onto A74(M)
48.9 mi
22.
Continue onto M74
37.3 mi
23.
Continue onto M8
0.5 mi
24.
Keep right onto M8
9.9 mi
25.
Take the ramp on the left onto Craigton Interchange (M898)
1.1 mi
26.
Continue onto A898
1.7 mi
27.
Continue onto Great Western Road (A82)
2 mi
28.
Enter Dunglass Roundabout and take the 2nd exit onto Dumbarton Road (A82)
144 ft
29.
Exit the roundabout onto Dumbarton Road (A82)
0.9 mi
30.
Take the ramp on the left onto Dumbarton Road (A82)
756 ft
31.
Go straight onto A814
1.5 mi
32.
Enter the roundabout and take the 2nd exit onto Glasgow Road (A814)
109 ft
33.
Exit the roundabout onto Glasgow Road (A814)
1152 ft
34.
Enter the roundabout and take the 4th exit onto Strathleven Place
524 ft
35.
Exit the roundabout onto Strathleven Place
316 ft
36.
Turn right
157 ft
37.
You have arrived at your destination, on the left
0 ft



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

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 80 £. 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 40 £ (80/2) per passenger.
For 3 passengers in the car, the cost of this trip is 26.67 £ (80/3) per passenger.
For 4 passengers in the car, the cost of this trip are 20 £ (80/4) per passenger.


Fuel cost = (461.26 mi / 37.5 mpg) x 143 pence per liter = 80 £

In more detail, the result is obtained:

Fuel needed = Distance / Car fuel consumption = miles * 4.54609 / carConsumtion = 461.26 mi * 4.54609 / 37.5 mpg = 55.9 liters

Fuel needed = 55.9 lt

Fuel cost = Fuel needed x Price per liter = 55.9 liters x 143 pence per liter = 80 £

Fuel cost from Portsmouth to Dumbarton = 80 £

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 50.5 £. 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 50.5 £.
For 2 passengers in carpooling, the cost of this trip is 25.25 £ (50.5/2) per passenger.
For 3 passengers in the car, the cost of this trip is 16.83 £ (50.5/3) per passenger.
For 4 passengers in the car, the cost of this trip is 12.63 £ (50.5/4) per passenger.