TowingLogic exists because a truck dealership almost got a family killed.
The Problem Nobody Talks About
Walk into any dealership in America and point at a half-ton truck. The salesperson will tell you it tows 13,000 Lbs. They'll say it with a straight face. What they won't tell you is that number was tested on a stripped-down regular cab with one driver, no options, and an empty bed. Your crew cab with leather seats, a moonroof, and a family of four inside? That truck tows thousands of pounds less — and nobody puts that on the window sticker.
Here's the part that makes our blood boil. Tongue weight counts against payload, not towing capacity. A travel trailer rated at 6,500 Lbs puts roughly 780 Lbs of tongue weight directly on the truck's rear axle. That 780 Lbs comes out of the truck's payload capacity — the same limited pool that has to cover every passenger, every cooler, every bag, and every toolbox already on board. On a lot of half-ton trucks, that math doesn't work. But nobody at the dealership runs the math. They just hand over the keys and say "you're good to go."
We've seen the result. Trucks with squatted rear ends and headlights pointed at the sky. Trailers fishtailing at 60 mph because the tongue weight is at 7% instead of 12%. Blown tires on trailer axles because the owner ran door-sticker pressure instead of load-adjusted PSI. Bent receiver hitches. Cooked transmissions. Overloaded rear axles on rigs that looked fine in the driveway but fell apart on the first mountain grade.
People don't overload their rigs on purpose. They overload them because nobody gave them the right numbers.
What We Built and Why
TowingLogic is what happens when you get tired of watching people tow blind. We built a set of calculators that do the math the dealerships won't. No marketing fluff. No "up to" numbers. Just the physics.
Our towing capacity calculator uses your truck's actual GVWR and curb weight — not the brochure numbers — to find the payload gap that most people don't know exists. The payload calculator breaks down exactly how passengers, cargo, and tongue weight eat into your capacity pound by pound. The tongue weight calculator shows you the safe range that keeps your trailer from fishtailing. And the tire pressure calculator gives you the load-adjusted PSI that prevents heat blowouts on highway runs.
Every tool on this site follows the same standards the engineers use: FMVSS certification label data, SAE J2807 towing test protocols, and actual physics. We don't round up for marketing. We don't hide the bad news. If your rig is overloaded, we'll tell you — and we'll tell you by how much.
The Promise
We're not a towing company. We don't sell hitches, trailers, or truck accessories. We don't take sponsorship money from manufacturers. We have zero financial incentive to tell you that your rig is safe when it isn't.
What we are is a group of truck owners who got tired of bad information getting people into dangerous situations. We've towed across 30+ states. We've weighed our rigs on CAT scales. We've done the math on a tailgate with a pen and the door sticker. And we've built that math into tools that anybody can use in their driveway before they ever leave home.
No generic estimates. No hidden agendas. Just the numbers you need to keep your truck out of the ditch and your family safe.
TowingLogic provides mathematical models and reference tools based on publicly available industry standards, including FMVSS certification requirements, SAE J2807 testing protocols, and manufacturer-published weight ratings. Our calculators produce estimates intended to support — not replace — your own due diligence.
The driver is ultimately responsible for verifying their vehicle's weight, configuration, and compliance with all applicable federal and state regulations. We strongly recommend weighing your rig on a certified scale before every tow trip. TowingLogic is not a substitute for professional mechanical inspection or legal advice.