As I was driving with my French car in the UK, I realized I had no idea how to adjust my speed according to the signs as my counter was in kilometers. I then checked some info online to have more references.

In the UK, speed limits are primarily set in miles per hour (mph). Let’s look at the standard speed limits and their equivalents in kilometers per hour (km/h).

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UK Speed Limits

1. Motorways and Dual Carriageways:
   • 70 mph (Miles per hour)
   • Equivalent: 112 km/h
     
     
2. Single Carriageways:
   • 60 mph
   • Equivalent: 96 km/h
     
     
3. Built-up Areas (Towns and Cities):
   • 30 mph
   • Equivalent: 48 km/h
     
     
4. Residential and School Zones:
   • 20 mph
   • Equivalent: 32 km/h
     
     
5. National Speed Limit for Goods Vehicles (over 7.5 tonnes):
   • 50 mph on single carriageways (80 km/h)
   • 60 mph on dual carriageways and motorways (96 km/h)
     

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Important Points to Remember

• Variable Speed Limits: On some motorways, speed limits can change depending on traffic conditions. Always keep an eye on road signs.
  
  
• Speed Cameras: These are widely used in the UK to enforce speed limits, especially in areas with high traffic or near schools.
  
  
• Weather Conditions: The general rule is to adjust your speed accordingly during adverse weather conditions like rain, fog, or snow.
  

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Translation of Speed Limits in Kilometers

• 70 mph ≈ 112 km/h
  
• 60 mph ≈ 96 km/h
  
• 30 mph ≈ 48 km/h
  
• 20 mph ≈ 32 km/h

For drivers unfamiliar with the UK’s mph system, this guide should help in understanding and adhering to speed regulations, ensuring a safe and enjoyable journey.

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