Australian Tow Weight Calculator

Vehicle Mass (kg):

Trailer Mass (kg):

Tow Ball Load (kg):

How to Use the Tow Weight Calculator for Safe Australian Towing

Getting your towing weights right means the difference between a safe trip and potential disaster. Our calculator helps you stay compliant with Australia's strict towing regulations. Here's how to use it effectively:

Step 1: Know Your Vehicle's Limits

Check your owner's manual for the vehicle's Gross Vehicle Mass (GVM) and Gross Combined Mass (GCM). These numbers form the foundation of safe towing calculations. Never guess - wrong figures put you at risk of fines and accidents.

Step 2: Measure Trailer Weight

Visit a certified weighbridge for accurate trailer measurements. Include everything you'll carry - tools, camping gear, and fuel. Remember that loaded trailer weight directly impacts stopping distance and vehicle control.

Step 3: Calculate Tow Ball Load

Use the calculator's tow ball load field to verify your downward force. Australian standards require 10-15% of total trailer weight on the tow ball. Too little causes swaying; too much strains your vehicle's rear suspension.

Step 4: Verify Compliance

The calculator checks three critical factors: 110% vehicle mass rule, tow ball load range, and basic safety margins. Red results mean immediate adjustments needed. Green results indicate compliance with VSB1 national standards.

Pro Tips:

Recheck weights when loading changes
Factor in terrain and weather conditions
Consult a professional for caravans over 2,500kg

Using this calculator helps avoid the average $600 fine for overweight towing in NSW. More importantly, it keeps you and others safe on our roads. Bookmark this page for quick access before every trip - your future self will thank you when navigating steep descents or emergency stops.