Towing Capacity Calculator
Can Your Truck Tow It?
Crow Survival · Free Tool
Can your truck tow it?
Most people check the tow rating and stop there. Payload is usually what actually runs out first — and it's the number that gets folks in trouble. This checks all three limits and tells you which one is really holding you back.
1. Your tow vehicle
Find these on the sticker inside your driver's door and in your owner's manual. Don't use the numbers from a brochure or an ad — they're for a different trim than yours.
2. What's riding with you
Everything inside the truck counts against payload — people, dogs, coolers, firewood, tools, water jugs. Be honest here. This is where most people go over.
3. The trailer
Use the trailer's GVWR, not its dry weight. Dry weight is what it left the factory at — before water, propane, dishes, and everything else you put in it.
Read this before you hook up. This tool does the math, but it can't know your exact truck. Published ratings change with cab size, engine, axle ratio, and options, so two trucks that look identical can have very different limits. Always go by the sticker inside your driver's door and your owner's manual, and weigh your real setup at a certified scale before a long trip. Being over these limits can affect braking, steering, warranty coverage, and your insurance after a crash.
Crow Survival · Free Tool
Can your truck tow it?
Most people check the tow rating and stop there. Payload is usually what actually runs out first — and it's the number that gets folks in trouble. This checks all three limits and tells you which one is really holding you back.
1. Your tow vehicle
Find these on the sticker inside your driver's door and in your owner's manual. Don't use the numbers from a brochure or an ad — they're for a different trim than yours.
2. What's riding with you
Everything inside the truck counts against payload — people, dogs, coolers, firewood, tools, water jugs. Be honest here. This is where most people go over.
3. The trailer
Use the trailer's GVWR, not its dry weight. Dry weight is what it left the factory at — before water, propane, dishes, and everything else you put in it.
Read this before you hook up. This tool does the math, but it can't know your exact truck. Published ratings change with cab size, engine, axle ratio, and options, so two trucks that look identical can have very different limits. Always go by the sticker inside your driver's door and your owner's manual, and weigh your real setup at a certified scale before a long trip. Being over these limits can affect braking, steering, warranty coverage, and your insurance after a crash.
What these numbers actually mean
Every truck has three limits stamped on it by the people who built it. Go past any one of them, and you’re overloaded – even if the other two look fine. Here’s what each one is in plain English.
GVWR – the most your truck can weigh
Gross Vehicle Weight Rating is the heaviest your truck is allowed to be once everything is in it. That’s the truck itself, plus you, plus your passengers, plus every cooler, tool bag, and firewood bundle in the bed. It also includes the weight pressing down on your hitch, which catches a lot of people off guard.
You’ll find this number on a sticker inside your driver’s door. Use that sticker, not a number from a brochure or a dealer website. Two trucks that look identical in a parking lot can have very different ratings depending on cab size, engine, and axle ratio.
Payload – what you can add before you’re over
Payload is simply GVWR minus what your truck weighs empty. If your truck is rated for 7,000 pounds and weighs 5,400 empty, you’ve got 1,600 pounds of payload to work with.
That sounds like plenty until you start adding things up. Two adults and two kids might be 450 pounds. Call it 300 pounds of gear, chairs, and a loaded cooler in the bed. A weight-distribution hitch is another 75. That’s 825 pounds gone, and you haven’t hooked up yet.
Tongue weight – the number that eats your payload
A trailer doesn’t just follow behind you. Part of its weight presses straight down on your hitch, and that weight lands on your truck’s rear axle. For a normal travel trailer, figure 10 to 15 percent of the trailer’s loaded weight. For a fifth wheel, it’s more like 15 to 25 percent.
Run those numbers on a 7,600-pound trailer, and you’re looking at about 912 pounds pushing down on your hitch. Add that to the 825 you already had in the truck, and you’re at 1,737 pounds – against a payload capacity of 1,600.
This is why so many half-ton trucks are over their limit while the owner has no idea. The tow rating says 9,500 pounds. The trailer weighs 7,600. Looks fine on paper. But run the payload math, and the truck is already 137 pounds past its limit.
Why dry weight will fool you
When you shop for a trailer, the number on the sticker is usually the dry weight — sometimes called Unloaded Vehicle Weight. That’s what the trailer weighed the day it rolled off the factory floor, and it is not what you’ll be towing.
Here’s what dry weight usually leaves out:
- Fresh water. Water weighs about 8.3 pounds per gallon. A 40-gallon tank filled up is 332 pounds — roughly two more passengers you didn’t plan for.
- Propane. Two full 30-pound tanks run about 110 pounds once you count the tanks themselves.
- Batteries. Often not included, and a pair of deep cycles is another 120 pounds or so.
- Factory options. Awnings, solar panels, generators, and slide-outs added at the dealer usually aren’t in that dry weight figure.
- Everything you own. Dishes, bedding, clothes, chairs, the grill, the dog food. Most families add well over a thousand pounds without trying.
The honest way to plan is to use the trailer’s GVWR – the most it’s allowed to weigh – instead of its dry weight. If your setup works at that number, it’ll work loaded for a real trip. If it only works at dry weight, you’re planning around a trailer that exists on paper and nowhere else.
Weigh it, don’t guess
The calculator above will tell you whether your numbers work. But numbers on a screen aren’t the same as a truck on a scale. Once you’re packed for a real trip, run the whole rig across a certified scale – most truck stops have one, and it usually costs about fifteen dollars.
Weigh it twice: once with the trailer hooked up, once with it dropped. The difference tells you your true tongue weight, which is the number people get wrong most often. Fifteen dollars is cheap insurance against finding out the hard way on a mountain grade.
