Route from Portsmouth to Harrow by car

From: Portsmouth, County: Hampshire, England
To: Harrow, County: Greater London, England
76 mi
1 h 25 min
Fuel consumption:
Fuel cost:
Passengers:



How many miles from Portsmouth to Harrow?

How far is from Portsmouth to Harrow?


The driving distance between Portsmouth and Harrow is 76 miles. Travel time is 1 hour and 25 minutes by car.






76 mi 1 h 25 min
1.
Head east on Gruneisen Road
835 ft
2.
Turn left onto Twyford Avenue (A3)
810 ft
3.
Enter the roundabout and take the 2nd exit onto A3
51 ft
4.
Exit the roundabout onto A3
1.2 mi
5.
Enter Portsbridge Roundabout and take the 3rd exit
0.3 mi
6.
Exit the roundabout
0.4 mi
7.
Continue onto A27
2.2 mi
8.
Keep left at the fork
503 ft
9.
Continue onto A27
817 ft
10.
Continue onto A3(M)
16.7 mi
11.
Enter Ham Barn Roundabout and take the 2nd exit onto Liphook and Petersfield Bypass (A3)
215 ft
12.
Exit the roundabout onto Liphook and Petersfield Bypass (A3)
5.3 mi
13.
Continue onto Portsmouth Road (A3)
2.3 mi
14.
Continue onto Tunnel Way (A3)
3 mi
15.
Continue onto Portsmouth Road (A3)
3.1 mi
16.
Continue onto Milford By-Pass (A3)
1.3 mi
17.
Continue onto Guildford and Godalming Bypass (A3)
5.3 mi
18.
Continue onto Midleton Road (A3)
7.8 mi
19.
Continue onto Portsmouth Road (A3)
924 ft
20.
Take the ramp on the left
0.3 mi
21.
Merge right onto Portsmouth Road (A3)
0.6 mi
22.
Take the ramp on the left onto A3
1086 ft
23.
Enter Wisley Interchange and take the 1st exit onto M25
32 ft
24.
Exit the roundabout onto M25
13.6 mi
25.
Take the ramp on the left towards M4: Reading
606 ft
26.
Keep right towards M4: London (W & C)
1.2 mi
27.
Merge right onto M4
2.5 mi
28.
Take the ramp on the left
0.4 mi
29.
Enter Cranford Parkway Interchange and take the 1st exit onto The Parkway (A312)
27 ft
30.
Exit the roundabout onto The Parkway (A312)
0.4 mi
31.
Keep left onto The Parkway (A312)
2.1 mi
32.
Enter the roundabout and take the 2nd exit onto The Parkway (A312)
184 ft
33.
Exit the roundabout onto The Parkway (A312)
0.7 mi
34.
Enter White Hart and take the 3rd exit onto Church Road (A312)
362 ft
35.
Exit the roundabout onto Church Road (A312)
0.7 mi
36.
Enter Target Roundabout and take the 2nd exit onto A312
344 ft
37.
Exit the roundabout onto A312
1.2 mi
38.
Enter the roundabout and take the 1st exit onto Petts Hill (A312)
21 ft
39.
Exit the roundabout onto Petts Hill (A312)
684 ft
40.
Continue onto Northolt Road (A312)
0.9 mi
41.
Enter the roundabout and take the 1st exit onto Northolt Road (A312)
142 ft
42.
Exit the roundabout onto Northolt Road (A312)
1106 ft
43.
Continue onto Lower Road (A312)
0.3 mi
44.
Continue onto Bessborough Road (A312)
0.5 mi
45.
Enter the roundabout and take the 1st exit onto Junction Road (A404)
57 ft
46.
Exit the roundabout onto Junction Road (A404)
343 ft
47.
Enter the roundabout and exit onto A404
334 ft
48.
You have arrived at your destination, on the right
0 ft



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

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 13.1 £. 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 6.55 £ (13.1/2) per passenger.
For 3 passengers in the car, the cost of this trip is 4.37 £ (13.1/3) per passenger.
For 4 passengers in the car, the cost of this trip are 3.28 £ (13.1/4) per passenger.


Fuel cost = (75.74 mi / 37.5 mpg) x 143 pence per liter = 13.1 £

In more detail, the result is obtained:

Fuel needed = Distance / Car fuel consumption = miles * 4.54609 / carConsumtion = 75.74 mi * 4.54609 / 37.5 mpg = 9.2 liters

Fuel needed = 9.2 lt

Fuel cost = Fuel needed x Price per liter = 9.2 liters x 143 pence per liter = 13.1 £

Fuel cost from Portsmouth to Harrow = 13.1 £

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 8.3 £. 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 8.3 £.
For 2 passengers in carpooling, the cost of this trip is 4.15 £ (8.3/2) per passenger.
For 3 passengers in the car, the cost of this trip is 2.77 £ (8.3/3) per passenger.
For 4 passengers in the car, the cost of this trip is 2.08 £ (8.3/4) per passenger.