UK Road Fuel Cost Estimator
Southampton → Portsmouth
How much petrol or diesel does it cost to drive from Southampton to Portsmouth? 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 1 | GBP 6 | GBP 11 | GBP 25 |
Car / SUV Petrol | GBP 4 | GBP 19 | GBP 38 | GBP 84 |
Van / MPV Diesel | GBP 6 | GBP 30 | GBP 60 | GBP 132 |
Lorry Diesel | GBP 11 | GBP 54 | GBP 108 | GBP 238 |
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 1.14 | — | GBP 1.14 |
| Car / SUV | 12 | GBP 3.80 | — | GBP 3.80 |
| Van / MPV | 9 | GBP 5.07 | GBP 6.01 | GBP 6.01 |
| Lorry | 5 | — | GBP 10.82 | GBP 10.82 |
"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: Southampton to Portsmouth
How far is Southampton to Portsmouth?
The highway distance from Southampton to Portsmouth is approximately 29 km. The estimated driving time is 0h 23m under normal highway conditions.
How much petrol does a car use from Southampton to Portsmouth?
A typical car with 12 km/L mileage uses approximately 2.4 litres of petrol. At today's Petrol price (GBP 1.57/L), that costs GBP 3.80.
How much does a lorry spend on diesel from Southampton to Portsmouth?
A lorry averaging 5 km/L needs about 5.8 litres of diesel for this route. At GBP 1.87/L, the fuel cost is GBP 10.82 one-way.
What is the toll charge from Southampton to Portsmouth?
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 Southampton to Portsmouth?
A motorcycle averaging 40 km/L uses about 0.7 litres. At today's Petrol price, that's GBP 1.14, 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 3.2 litres, costing GBP 6.01 in fuel. Add the GBP 0.00 toll for a total one-way cost of approximately GBP 6.01.
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