Route from St Helens to Watford by car

From: St Helens, County: Merseyside, England
To: Watford, County: Hertfordshire, England
186 mi
3 h 7 min
Fuel consumption:
Fuel cost:
Passengers:



How many miles from St Helens to Watford?

How far is from St Helens to Watford?


The driving distance between St Helens and Watford is 186 miles. Travel time is 3 hours and 7 minutes by car.






186 mi 3 h 7 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 right onto M6
37.9 mi
15.
Take the ramp on the left towards M1: The SOUTH
1.6 mi
16.
Merge right onto M1
64 mi
17.
Take the ramp on the left
0.3 mi
18.
Enter Berrygrove Interchange and take the 3rd exit onto Stephenson Way (A4008)
1273 ft
19.
Exit the roundabout onto Stephenson Way (A4008)
0.7 mi
20.
Keep right onto Stephenson Way
686 ft
21.
Enter the roundabout and take the 2nd exit onto Colonial Way
229 ft
22.
Exit the roundabout onto Colonial Way
591 ft
23.
Enter the roundabout and take the 1st exit onto Radlett Road
13 ft
24.
Exit the roundabout onto Radlett Road
0.3 mi
25.
Make a slight left onto Radlett Road
0.3 mi
26.
Turn left onto Queens Road
277 ft
27.
Turn left onto Queen's Place
143 ft
28.
Turn right onto Gladstone Road
771 ft
29.
You have arrived at your destination, on the left
0 ft



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

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 32.3 £. 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 16.15 £ (32.3/2) per passenger.
For 3 passengers in the car, the cost of this trip is 10.77 £ (32.3/3) per passenger.
For 4 passengers in the car, the cost of this trip are 8.08 £ (32.3/4) per passenger.


Fuel cost = (186.32 mi / 37.5 mpg) x 143 pence per liter = 32.3 £

In more detail, the result is obtained:

Fuel needed = Distance / Car fuel consumption = miles * 4.54609 / carConsumtion = 186.32 mi * 4.54609 / 37.5 mpg = 22.6 liters

Fuel needed = 22.6 lt

Fuel cost = Fuel needed x Price per liter = 22.6 liters x 143 pence per liter = 32.3 £

Fuel cost from St Helens to Watford = 32.3 £

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 20.4 £. 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 20.4 £.
For 2 passengers in carpooling, the cost of this trip is 10.2 £ (20.4/2) per passenger.
For 3 passengers in the car, the cost of this trip is 6.8 £ (20.4/3) per passenger.
For 4 passengers in the car, the cost of this trip is 5.1 £ (20.4/4) per passenger.