How Far Is Southampton, STH from Portsmouth, POR?
How far is it from Southampton, STH to Portsmouth, POR? See straight-line and estimated driving distances in kilometres and miles.
This map shows the start and end locations only. Use the live planner for turn-by-turn navigation.
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Route Stats Summary
Reference values are modeled during page build. Use the live planner for current turn-by-turn timing.
Reverse Route
Portsmouth, POR to Southampton, STH
Use the return-direction page when you want the same reference data for the trip back.
Trip Energy and Cost
Usage is estimated from the modeled route distance. Cost is calculated only when you enter your own price.
Truck Fuel Consumption and Cost
Electric Truck Consumption and Charging
- For an electric truck, this is usually a manageable short trip if the vehicle starts with a strong working charge.
- Likely manageable without a full mid-trip charging stop in mild conditions.
- No local charger POI dataset is attached to this corridor yet, so use the live planner to check exact charging stops.
Distance Breakdown
| Straight-line (as the crow flies) | 24 km 15 miles |
| Estimated driving distance | 31 km 19 miles |
Cities and Places Along the Route Corridor
Rest Stop Recommendations
No scheduled break recommended Flexible
Places along or near this route corridor appear only when a local OSM-derived corridor dataset is available.
Route Introduction
This page compares the direct distance between Southampton, STH and Portsmouth, POR with a modeled driving distance of about 31 km, so you can judge the trip before checking a live route.
Route Context
- The modeled road distance stays fairly close to the direct gap between Southampton, STH and Portsmouth, POR.
- One end of the trip is a large urban area, so the final approach can add more variability than the open-road segment.
Travel Factors
| Reference road distance | 31 km19 mi |
| Modeled from the stored city pair and the site distance estimator. | |
| Reference drive time | 59 min |
| This is a continuous driving estimate based on the modeled route length, not a rest-inclusive trip plan. | |
| Modeled planning speed | 48 km/h30 mph |
| Used only to model the reference travel time. It does not reflect live traffic or road conditions. | |
| Urban-delay exposure | Moderate |
| Based on the population scale around Southampton, STH and Portsmouth, POR, which can make departure and arrival less predictable than the middle portion of the drive. | |
| Best use | Trip comparison |
| Useful when you want a quick distance reference before opening a live route. | |
Practical Travel Tips
- Use the live planner when departure time, closures, incidents, or exact turn-by-turn steps matter.
FAQ
How far is Southampton, STH from Portsmouth, POR by road?
The page models the road trip at about 31 km (19 miles). That is a reference estimate, not a live turn-by-turn route result.
What is the straight-line distance between Southampton, STH and Portsmouth, POR?
The direct geographic gap is about 24 km. It is useful as a comparison point, but it is not the same as a drivable route.
How long does it take to drive from Southampton, STH to Portsmouth, POR?
The reference driving time on this page is 59 min. It is modeled from distance and endpoint assumptions, so use the live planner for current conditions.
Is this a live navigation route?
No. This page is a reference view built from modeled route data. Use the live planner for current turn-by-turn navigation.
How much fuel or electricity could the Southampton, STH to Portsmouth, POR trip use?
The page estimates usage only. Enter your own fuel or electricity price if you want a trip-cost estimate.
Why can the driving distance differ from the direct distance?
Roads rarely follow the shortest possible line, so a drivable trip is often meaningfully longer than the direct geographic gap.
Keep Exploring
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Reverse trip from Portsmouth, POR to Southampton, STH
Open the return direction as part of the same route cluster.
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Route overview for Southampton, STH to Portsmouth, POR
See the route reference page for the same city pair.
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Travel time page for Southampton, STH to Portsmouth, POR
See the time-focused reference page for the same pair.
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Driving Guide
Reference driving rules and guidance for the wider area.