UK Road Fuel Cost Estimator
Swansea → Plymouth
How much petrol or diesel does it cost to drive from Swansea to Plymouth? Breakdown by vehicle type using today's United Kingdom fuel prices, updated from the datasource.
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Fuel Cost by Vehicle Type
Select your vehicle to see the detailed fuel breakdown for this route. Prices as of 18 May 2026.
Monthly Fleet Fuel Cost
Running this route regularly? Estimated one-way fuel cost per month, by trip frequency. Figures use primary fuel for each vehicle type (toll excluded).
| Vehicle | 1×/month | 5×/month | 10×/month | 22×/month |
|---|---|---|---|---|
Motorcycle Petrol | GBP 7 | GBP 33 | GBP 66 | GBP 145 |
Car / SUV Petrol | GBP 22 | GBP 110 | GBP 219 | GBP 482 |
Van / MPV Diesel | GBP 35 | GBP 173 | GBP 346 | GBP 762 |
Lorry Diesel | GBP 62 | GBP 312 | GBP 623 | GBP 1,371 |
Add GBP 0.00 toll per one-way trip to get total trip cost per journey.
Full Fuel Cost Comparison
All vehicle types × all fuel types for this route.
| Vehicle | km/L | Petrol | Diesel | Fuel + Toll |
|---|---|---|---|---|
| Motorcycle | 40 | GBP 6.57 | — | GBP 6.57 |
| Car / SUV | 12 | GBP 21.90 | — | GBP 21.90 |
| Van / MPV | 9 | GBP 29.20 | GBP 34.62 | GBP 34.62 |
| Lorry | 5 | — | GBP 62.31 | GBP 62.31 |
"Fuel + Toll" uses the primary fuel type for each vehicle. Toll is one-way estimate.
Today's Fuel Prices in United Kingdom
GOV.UK weekly road fuel prices used in all calculations above
Last updated: 18 May 2026. Prices are sourced from GOV.UK weekly road fuel prices.
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Common Questions: Swansea to Plymouth
How far is Swansea to Plymouth?
The highway distance from Swansea to Plymouth is approximately 167 km. The estimated driving time is 2h 14m under normal highway conditions.
How much petrol does a car use from Swansea to Plymouth?
A typical car with 12 km/L mileage uses approximately 13.9 litres of petrol. At today's Petrol price (GBP 1.57/L), that costs GBP 21.90.
How much does a lorry spend on diesel from Swansea to Plymouth?
A lorry averaging 5 km/L needs about 33.4 litres of diesel for this route. At GBP 1.87/L, the fuel cost is GBP 62.31 one-way.
What is the toll charge from Swansea to Plymouth?
The estimated one-way toll on this highway route is approximately GBP 0.00. Most UK road charges are limited to specific crossings, bridges, tunnels, or the M6 Toll. This rollout keeps the route-level baseline at zero and links the official charge pages for the main tolled corridors.
How much does a motorcycle spend on fuel from Swansea to Plymouth?
A motorcycle averaging 40 km/L uses about 4.2 litres. At today's Petrol price, that's GBP 6.57, making it the most fuel-efficient option for this route.
What is the total cost (fuel + toll) for a delivery van on this route?
A delivery van using diesel at 9 km/L needs 18.6 litres, costing GBP 34.62 in fuel. Add the GBP 0.00 toll for a total one-way cost of approximately GBP 34.62.
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