London to Hemel Hempstead

via M3/M25

0h 25min
Drive Time
22
Miles
£4
Petrol Cost
£3
Tolls
Reverse EV Trip

Trip Details

Distance22 miles (35 km)
Drive Time0h 25min
RouteM3/M25
Best TimeLate evening (after 7 PM)

Fuel Costs

Petrol (40 mpg)~2.5 litres
Est. Cost£4

Driving Tips for This Route

Before setting off on this journey, ensure your vehicle is prepared for UK motorway driving. Keep to the left-hand lane unless overtaking, and remember that speed limits are displayed in miles per hour — 70 mph on motorways and 60 mph on single carriageways. Plan rest stops at motorway services every two hours to stay alert. Watch for variable speed limits on smart motorways, shown on overhead gantry signs. Roundabouts are common at junctions, so remember to give way to traffic from the right. Keep loose change handy for any toll roads along your route.

Frequently Asked Questions

How long does it take to drive from London to Hemel Hempstead?
The drive from London to Hemel Hempstead takes approximately 0h 25min covering 22 miles via M3/M25. Actual time may vary based on traffic, weather, and road conditions.
How much does petrol cost for London to Hemel Hempstead?
At 40 MPG and £1.40/litre, expect to spend approximately £4 on petrol for this 22-mile trip. You'll need about 2.5 litres of fuel.
What is the best time to drive from London to Hemel Hempstead?
Late evening (after 7 PM) to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the London to Hemel Hempstead route?
The Dartford Crossing (M25) charges £3 for cars via the Dart Charge system. Register online to avoid a fine.