Towing Capacity Checker
Enter your vehicle's towing capacity, trailer weight, tongue weight, and payload, the tool shows a live tow-rig diagram, capacity bars, and a pass / caution / fail verdict.
See also: Tire Pressure & Load Calculator to check tire PSI when loading for a tow.
Check your towing setup
Find your vehicle's towing capacity in the owner's manual or door jamb sticker. Values update live as you type.
Load ratio, tongue weight, and payload are all within safe limits.
How to use this checker
Enter your vehicle's maximum towing capacity (from the owner's manual), the loaded trailer GVWR (Gross Vehicle Weight Rating, what the trailer weighs when fully loaded), and the tongue weight (the downward force on the hitch ball). Enter your payload capacity to check whether tongue weight fits within the vehicle's cargo limit. Values update live, no submit button needed. Use the unit toggle at the top of the form to switch between pounds and kilograms; your numbers convert automatically.
Tips for success
- Use the manual rating: Use your vehicle's rated towing capacity from the owner's manual, not the hitch or ball mount, which is often higher.
- Tongue weight target 10–15%: Too little and the trailer sways; too much and the tow vehicle's front wheels lose traction.
- Budget for longer braking: At or near maximum capacity, braking distance grows significantly. Reduce speed and increase following distance.
- Check brake laws: Trailers over 3,500 lbs (≈1,590 kg) usually require trailer brakes, check local rules.
- Payload includes passengers: Payload limits combine occupants, cargo, AND tongue weight. Subtract passengers before loading cargo.
Want the deep dive? See Towing Capacity Explained for visual breakdowns of GVWR, GCWR, GAWR, tongue weight, and payload, plus a pre-tow safety checklist.
Understanding the bars
- Load ratio: Trailer GVWR as a percentage of max towing capacity. The shaded green zone (0–80%) is comfortable; 80–100% is within spec but demanding; over 100% is unsafe.
- Tongue weight balance: Tongue weight as a percentage of trailer GVWR. The shaded green band (10–15%) is the safe target. Below 10% causes trailer sway; above 15% overloads the hitch and rear suspension.
- Payload usage: Tongue weight as a percentage of vehicle payload capacity. Remember to subtract passengers and cargo from the remaining margin, the bar only shows tongue weight's share.
FAQ
Where do I find my vehicle's towing capacity?
The most reliable source is the owner's manual, look for the towing section. It will also be on a sticker on the driver's door jamb. Towing capacity can vary by trim level, engine, axle ratio, and tow package, always use the spec for your exact configuration.
What is GVWR and how is it different from trailer weight?
GVWR (Gross Vehicle Weight Rating) is the maximum loaded weight of the trailer, the trailer frame plus everything inside it at full capacity. The actual loaded weight should not exceed GVWR. When calculating towing safety, use the actual loaded weight or GVWR, whichever is higher.
How do I measure tongue weight?
You can use a dedicated tongue weight scale (available online for around $20–$40), or estimate it with a bathroom scale and a short piece of pipe to simulate hitch height. Some weight distribution hitches have built-in indicators. Measure with the trailer fully loaded as it will be towed.
My truck exceeds its towing capacity, is it really a big deal?
Yes. Exceeding towing capacity overloads the transmission, brakes, cooling system, frame, and tyres. Brake fade becomes a serious hazard on grades. In an accident while over capacity, insurance can deny your claim, and it voids most manufacturer warranties for towing-related damage.
What's the difference between towing capacity and payload capacity?
Towing capacity is how much weight can hang behind the hitch. Payload capacity is how much weight the vehicle can carry, passengers, cargo, and tongue weight combined. Both limits matter. A truck can have a 12,000 lb towing rating but only 1,700 lb payload, meaning heavy tongue weight plus passengers can put you over payload even if the trailer is within towing spec.