Distance from Birmingham to Portsmouth

The straight-line (great-circle) distance between Birmingham and Portsmouth is 193.6 kilometres, roughly 28 min by plane at 850 km/h. By road it is about 256 km via M40 and A34, which takes around 3 h of driving without stops. The map below shows both routes, and the calculator recomputes them for any other pair of places.

Straight line193.6 km
By road256 km
Driving time3 h
Flight time28 min

About this page

This page is for anyone planning a trip from Birmingham to Portsmouth, in the United Kingdom. The straight-line distance comes from the haversine formula (great-circle distance). The road distance and driving time are the fastest car route on the OpenStreetMap road network, computed with OSRM; the actual time depends on traffic, stops and the roads you choose. Tap "Calculate distance" in the calculator to redraw the route live.

Frequently asked questions

What is the distance from Birmingham to Portsmouth?
In a straight line it is 193.6 km. By road it is about 256 km, roughly 3 h of driving.
How long is the flight from Birmingham to Portsmouth?
Roughly 28 min: the distance at a cruising speed of 850 km/h plus about 15 minutes for take-off and landing.
How many kilometres by road between Birmingham and Portsmouth?
About 256 km on the fastest route via M40 and A34, which takes around 3 h by car. Tap "Calculate distance" in the calculator to see the route on the map.
How is this distance calculated?
The straight-line distance uses the haversine formula, which gives the shortest path between two points on the Earth's surface.