Distance from Norwich to Portsmouth

The straight-line (great-circle) distance between Norwich and Portsmouth is 260.2 kilometres, roughly 38 min by plane at 850 km/h. By road it is about 311 km via M25 and A11, which takes around 3 h 45 min of driving without stops. The map below shows both routes, and the calculator recomputes them for any other pair of places.

Straight line260.2 km
By road311 km
Driving time3 h 45 min
Flight time38 min

About this page

This page is for anyone planning a trip from Norwich 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 Norwich to Portsmouth?
In a straight line it is 260.2 km. By road it is about 311 km, roughly 3 h 45 min of driving.
How long is the flight from Norwich to Portsmouth?
Roughly 38 min: the distance at a cruising speed of 850 km/h plus about 20 minutes for take-off and landing.
How many kilometres by road between Norwich and Portsmouth?
About 311 km on the fastest route via M25 and A11, which takes around 3 h 45 min 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.