Free UK Towing Weight Calculator

How to Use a Free Towing Weight Calculator for Safe UK Towing

Towing in the UK requires strict compliance with weight regulations. Whether you’re hauling a caravan, trailer, or horsebox, using a free towing weight calculator helps avoid fines and ensures road safety. Here’s how to use one effectively.

Why Weight Matters
UK law mandates specific towing limits based on your vehicle and licence. Exceeding these can result in £300 fines and penalty points. The DVSA regularly conducts roadside checks using weighbridges, making accurate calculations essential.

Step-by-Step Guide

  1. Find Your Vehicle’s Kerb Weight
    Check your manual or V5C registration certificate. This base weight includes fluids but excludes passengers/cargo.

  2. Add Trailer Weight
    Include your trailer’s Maximum Technically Permitted Laden Mass (MTPLM). For caravans, this is on the weight plate near the door.

  3. Calculate Passenger Load
    The calculator automatically adds 75kg per passenger. Adjust if carrying heavier adults or children.

  4. Include Luggage
    Add roof boxes, tools, or equipment weight. Remember: front storage lockers add 15-30kg to caravans.

Understanding Results

  • Under 3,500kg: Category B licence valid

  • Over 3,500kg: Requires B+E licence

  • Caravan Safety: The 85% rule (trailer ≤ 85% of kerb weight) improves stability

Pro Tips

  • Always leave 10% weight margin for safety

  • Redistribute weight with heavy items over axles

  • Check tyre pressures increase when towing

When to Recalculate

  • Changing vehicles

  • Modifying trailers

  • Carrying special equipment

Using a free towing weight calculator takes the guesswork out of legal compliance. It helps prevent dangerous swaying, maintains braking efficiency, and protects your driving licence. Bookmark your calculation for future reference and always double-check before long trips.

Remember: This tool complements but doesn’t replace official vehicle documentation. Consult your owner’s manual and insurer for specific restrictions. Safe towing starts with proper weight management – get it right first time with this free calculator.

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