Route from Llanelli to St Helens
The distance between Llanelli and St Helens is 169 miles. Travel time is 3 hours and 41 minutes.

Driving directions from Llanelli to St Helens
What's the cost of a drive from Llanelli to St Helens?
The journey, powered by petrol, sets you back £29.3. In this calculation, we're crunching numbers based on a petrol price of 143 pence per liter and a car's thirst of 37.5 miles per gallon. If you're carpooling with a buddy, that's £14.65 each (£29.3 divided by 2). With a trio onboard, it drops to around £9.77 a head (£29.3 divided by 3), and with a full car of four, it's a mere £7.33 per person (£29.3 divided by 4).
Let's dig into the math behind it. The fuel expenditure hinges on the distance covered and the car's efficiency. For this particular jaunt, you're looking at guzzling down roughly 20.5 liters of fuel. Crunching the numbers, that's where the £29.3 total comes from for the trip from Llanelli to St Helens.
Diesel cost from Llanelli to St Helens.
The trip with diesel fuel costs 18.5 £ (151p/lt, 62.7 mpg).
For 2 passengers: 9.25 £ (18.5/2) /p.
For 3 passengers: 6.17 £ (18.5/3) /p.
For 4 passengers: 4.63 £ (18.5/4) /p.
Diesel cars generally have lower fuel consumption compared to petrol cars for the following reasons:
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Higher Energy Density of Diesel Fuel: Diesel fuel contains more energy per liter compared to petrol. This means that for the same volume of fuel, diesel engines can generate more power and travel a greater distance, resulting in lower fuel consumption.
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Increased Thermal Efficiency of Diesel Engines: Diesel engines operate at higher compression ratios compared to petrol engines. This higher compression ratio allows diesel engines to extract more energy from each unit of fuel. As a result, diesel engines are typically more thermally efficient, translating into lower fuel consumption.
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Greater Torque at Lower RPM: Diesel engines tend to produce more torque at lower engine speeds (RPM) compared to petrol engines. This characteristic allows diesel vehicles to maintain better fuel efficiency, particularly during steady-state cruising, as they require less throttle input to maintain speed.
These factors combined contribute to the generally lower fuel consumption observed in diesel cars compared to their petrol counterparts.
Alternative routes from Llanelli to St Helens
The second route from Llanelli to the St Helens is 228.07 miles and takes 3 hours and 58 minutes.
The third route from Llanelli to the St Helens is 169 miles and takes 3 hours and 49 minutes.
Which is the cheapest route from Llanelli to St Helens by car?
The cheapest route from Llanelli to St Helens is the suggested route (0ft, ) and costs £ (petrol fuel cost, 143p/lt, 37.5mpg).
The second cheapest route from Llanelli to St Helens is the suggested route (0ft, ) and costs £.
The most expensive route from Llanelli to St Helens is the suggested route (0ft, ) and costs £.
For greater safety, the driver should choose the route that passes through the highway (median barrier) and not through smaller roads (curves in the road, bad road conditions, no median barrier).
How to get from Llanelli to St Helens?
There are three suggested routes. The fastest route is 169mi (distance from Llanelli to St Helens) and its duration is 3h 41min. The other route is 169mi, and its duration is 3h 49min. The slowest route is 228mi, and its duration is 3h 58min.
RouteCalculator provides you with the information to prepare your trip from Llanelli to St Helens by car or motorbike. It offers you alternative road routes that you can follow to go from Llanelli to St Helens. It provides driving directions from Llanelli to St Helens, i.e. where to turn and when, distance of the Llanelli - St Helens route, travel time, display of the route on the map, fuel cost (petrol, diesel) and toll (if exist) cost.
In case you share the journey (carpooling) from Llanelli to St Helens with other people or friends, RouteCalculator provides the cost of the journey and the amount that each passenger will have to pay.
Where is Llanelli located?
Llanelli is located in Llanelli county and in Wales. It is situated at an altitude of 9 meters above sea level. Llanelli has coordinates 51.6808860o,-4.1602480o. RouteCalculator provides a map of Llanelli from which you can plan your trips to other UK cities.
What is the location of St Helens?
St Helens is located in Merseyside county and in England. It is situated at an altitude of 39 meters above sea level. St Helens has coordinates 53.4563070o,-2.7370950o. RouteCalculator provides a map of St Helens from which you can plan your trips to other UK cities.
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