Route from Barnet to Portsmouth by car

The driving distance between Barnet and Portsmouth is 88 miles. Travel time is 1 hour and 44 minutes by car.

From: Barnet, County: Greater London, England
To: Portsmouth, County: Hampshire, England
88 mi , 1 h 44 min
Tolls: 0£ Stations
Fuel consumption:
Fuel cost:
Passengers:



Route from Barnet to Portsmouth on map



Driving directions from Barnet to Portsmouth

88 mi 1 h 44 min
1.
Head southeast
215 ft
2.
Make a sharp left
259 ft
3.
Continue slightly right onto Main Drive
419 ft
4.
Make a slight right to stay on Main Drive
457 ft
5.
Turn left onto Oakleigh Road North (A109)
0.5 mi
6.
Turn right onto Carlisle Place
296 ft
7.
Continue left onto The Avenue
372 ft
8.
Turn right onto Friern Barnet Road (A1003)
180 ft
9.
Turn left onto Station Road (A109)
0.5 mi
10.
Make a sharp right onto Pinkham Way (A406)
1.1 mi
11.
Continue onto North Circular Road (A406)
2.4 mi
12.
Keep left towards A406: N Circular
5.9 mi
13.
Enter Hanger Lane Gyratory and take the 2nd exit towards A406: North Circular
416 ft
14.
Exit the roundabout towards A406: North Circular
2.8 mi
15.
Enter Chiswick Roundabout and take the 5th exit onto Great West Road (A4)
804 ft
16.
Exit the roundabout onto Great West Road (A4)
0.5 mi
17.
Take the ramp on the left onto M4
8.4 mi
18.
Take exit 4B on the left towards M25 South: Gatwick
0.4 mi
19.
Keep left towards M25 South: Heathrow (Terminal 5)
0.6 mi
20.
Merge left onto M25
13.3 mi
21.
Take the ramp on the left towards A3: London (SW)
1176 ft
22.
Enter Wisley Interchange and take the 3rd exit onto A3
892 ft
23.
Exit the roundabout onto A3
0.6 mi
24.
Merge right onto Portsmouth Road (A3)
0.8 mi
25.
Continue onto Ripley By-Pass (A3)
7.7 mi
26.
Continue onto Guildford and Godalming Bypass (A3)
5.3 mi
27.
Continue onto Milford By-Pass (A3)
1.3 mi
28.
Continue onto Portsmouth Road (A3)
3 mi
29.
Continue onto Tunnel Way (A3)
3 mi
30.
Continue onto Portsmouth Road (A3)
2.2 mi
31.
Continue onto Liphook and Petersfield Bypass (A3)
5.3 mi
32.
Enter Ham Barn Roundabout and take the 2nd exit onto Liphook and Petersfield Bypass (A3)
233 ft
33.
Exit the roundabout onto Liphook and Petersfield Bypass (A3)
6.8 mi
34.
Continue onto London Road (A3)
10.1 mi
35.
Continue onto A27
2.2 mi
36.
Take the ramp on the left
0.4 mi
37.
Keep right at the fork
235 ft
38.
Enter Portsbridge Roundabout and take the 1st exit onto London Road (A3)
87 ft
39.
Exit the roundabout onto London Road (A3)
921 ft
40.
Keep right onto A3
1 mi
41.
Enter the roundabout and take the 1st exit onto A3
9 ft
42.
Exit the roundabout onto A3
196 ft
43.
Turn right onto Walden Road
970 ft
44.
Turn left onto Widley Road
609 ft
45.
Turn left onto Gruneisen Road
32 ft
46.
You have arrived at your destination, on the right
0 ft


What is the financial outlay associated with traveling from Barnet to Portsmouth by car?

The journey, powered by petrol, incurs a cost of £15.2. In this computational scenario, the price of petrol is assumed to be 143 pence per liter, and the car's fuel efficiency stands at miles per gallon.

For individuals contemplating carpooling arrangements, the expenditure per traveler diminishes as the number of passengers increases. With two passengers, the cost per person amounts to £7.6 (£15.2/2). For a trio of passengers, the cost per person reduces to £5.07 (£15.2/3), and for a quartet of passengers, it further decreases to £3.8 (£15.2/4).

To provide further elucidation on the calculation process, let us dissect how the final figure is derived:

Initially, the requisite fuel quantity is determined by dividing the distance traveled by the car's fuel consumption rate. For a journey spanning 87.81 miles, this computation entails multiplying 87.81 miles by 4.54609 (liters per gallon) and subsequently dividing by the car's fuel efficiency of mpg, resulting in a requirement of 10.6 liters of fuel.

Subsequently, the fuel expenditure is computed by multiplying the amount of fuel required by the price per liter. Given a consumption of 10.6 liters of fuel at a rate of 143 pence per liter, the cumulative cost equals £15.2.

In summation, the total fuel expenditure for the trip from Barnet to Portsmouth stands at £15.2.

Diesel cost from Barnet to Portsmouth.

The trip with diesel fuel costs 9.6 £ (151p/lt, 62.7 mpg).
For 2 passengers: 4.8 £ (9.6/2) /p.
For 3 passengers: 3.2 £ (9.6/3) /p.
For 4 passengers: 2.4 £ (9.6/4) /p.

Significant factors contributing to diesel cars generally having lower fuel consumption than petrol cars are:

  1. Higher Thermal Efficiency: Diesel engines typically operate at higher compression ratios than petrol engines. This higher compression ratio allows diesel engines to extract more energy from each unit of fuel, resulting in greater thermal efficiency. As a result, diesel vehicles can achieve better fuel economy compared to petrol vehicles.

  2. More Torque at Lower RPM: Diesel engines tend to produce more torque at lower engine speeds (RPM) compared to petrol engines. This characteristic enables diesel vehicles to perform more efficiently during steady-state driving conditions, requiring less throttle input to maintain speed. Consequently, diesel cars often exhibit lower fuel consumption, especially in highway driving scenarios.

Alternative routes from Barnet to Portsmouth

The second route from Barnet to the Portsmouth is 86.72 miles and takes 1 hour and 57 minutes.