Weigh That Tow — 4WD & Caravan Weight Limits, Payload & Towing Calculator
Eliminate the guesswork from 4WD, caravan, and towing weight calculations. Track Gross Vehicle Mass (GVM), Gross Combination Mass (GCM), Aggregate Trailer Mass (ATM), Gross Trailer Mass (GTM), Tow Ball Download (TBD), and front/rear axle load limits against manufacturer ratings.
Comprehensive Weight Limit Tracking for Australian Touring
Whether you tour with a 4WD wagon, dual-cab ute, off-road hybrid caravan, or boat trailer, Weigh That Tow provides accurate weight limit evaluation across all critical mass metrics:
- Gross Vehicle Mass (GVM): Total vehicle weight including passengers, fuel, accessories, and tow ball download.
- Gross Combination Mass (GCM): Total combined weight of vehicle and trailer setup.
- Aggregate Trailer Mass (ATM) & Gross Trailer Mass (GTM): Unladen tare to maximum manufacturer capacity.
- Tow Ball Download (TBD): Static downforce exerted on the vehicle towbar hitch.
- Axle Load & Leverage Dynamics: Physics-based 4-point leverage modelling calculating weight distribution across front and rear vehicle axles.
- Smart Compartment Inventory: Allocate gear across compartments (front boot, roof rack, rear tub, underbed) to evaluate balance shifts.
- Dynamic Consumption Slider: Simulate fuel burn and water usage to observe real-time mass changes during long-distance travelling.
- Cold Operating Tyre Pressures: Calculate tyre pressure recommendations based on real axle loads.
Built Offline-First for Remote Travel
All specifications, setups, and gear inventories remain accessible when travelling off-grid across Australia, with automatic cloud synchronisation once an internet connection is restored.