Stack the weight before you stack up the highway
The number printed on your trailer's spec sheet describes an empty box with no water, no propane, and nobody's bikes on the back. The number that actually matters is the one a CAT scale prints after the tank is full and the dog's crate is loaded in. Build your real, packed weight here, layer by layer, then check it against what your tow vehicle can actually carry.
RV weight ledger calculator
Home base
RV class
Stack the weight
Tow vehicle
Crew and cab
The ledger starts empty
Work through the five steps on the left, then tap Build the ledger. Every layer of weight stacks up here, checked against nine separate limits at once.
SAE J2807 · Hitch classes SAE J684 · GVWR/GAWR FMVSS 110 · Fifth-wheel coupling ISO 1726, SAE J2638 · Trailer electrics ISO 11992, ISO 1724Most RV weight advice stops one step too early
Search around and you'll find plenty of pages that take a trailer's tow rating, compare it to a truck's tow rating, and call it a match. That comparison misses almost everything that actually causes trouble on the road. A trailer's dry weight is a museum-piece number, accurate for exactly the configuration it left the factory in and almost never the configuration that's actually rolling down the interstate behind you. Fill the water tank, load the propane, toss in camp chairs, a generator and two bikes, and that lightweight trailer can gain a thousand pounds before it ever sees a hitch ball.
Then there's the tow vehicle side of the equation, which gets even less attention. Payload, not tow rating, is usually the first limit a half-ton truck hits when it's pulling a fifth wheel, because pin weight sits directly in the bed and eats into the same payload pool as passengers and cargo. This ledger treats the RV and the tow vehicle as one connected system instead of two separate spec sheets, because that's how the physics actually works once you're merging onto the highway with the rig fully loaded.
Dry weight isn't trip weight
Water, propane and gear stack on top of UVW the way an actual camping trip loads them.
Payload checked, not assumed
Pin and tongue weight pull from the same payload pool as passengers, exactly where fifth wheel owners get caught out.
Sway risk gets its own line
Hitch weight percentage and trailer type are checked together, because under the tow rating doesn't mean it won't fishtail.
Every RV class, one ledger
Pop-up to luxury fifth wheel all live in the same database with class-appropriate math.
Nine RV classes, nine different weight personalities
Each class below carries its own hitch-weight target band and its own typical cargo allowance, because a pop-up camper and a 38-foot toy hauler are not the same engineering problem wearing different paint.
Pop-up / folding camper
Light enough for many midsize SUVs, but check tongue weight closely since folding frames carry it differently than a fixed-wall trailer.
Dry: 1,400 to 3,200 lb
Travel trailer, small/mid
The volume seller of the RV world, bumper-pull coupling, tongue weight target of 10 to 15 percent loaded.
Dry: 3,500 to 6,500 lb
Travel trailer, large/triple-axle
Bigger floorplans push curb weight and CCC margins thinner, often demanding a heavier half-ton or 3/4-ton tow vehicle.
Dry: 6,500 to 9,500 lb
Fifth wheel, mid-size
Pin weight rides in the bed, not off a rear bumper, and typically runs 18 to 22 percent of loaded weight.
Dry: 9,000 to 13,000 lb
Fifth wheel, large/luxury
Triple-slide and residential-fridge units that frequently require a one-ton dually to clear payload comfortably.
Dry: 13,000 to 17,500 lb
Toy hauler (travel trailer style)
Garage space adds weight fast once a side-by-side or dirt bikes are loaded; cargo capacity gets consumed quicker than the floorplan suggests.
Dry: 7,000 to 11,000 lb
Toy hauler fifth wheel
Same garage-space weight problem as above, but with fifth wheel pin geometry and typically a higher GVWR ceiling to compensate.
Dry: 11,500 to 16,000 lb
Class A motorhome towing a dinghy
Flip the math: the motorhome is the tow vehicle here, and a flat-towed car rides behind it.
Dinghy: 2,000 to 5,000 lb
Class C motorhome towing a trailer
Chassis ratings vary widely by cutaway base, so the tow rating here depends heavily on the specific chassis under the box.
Trailer: 1,500 to 5,000 lb
Typical RV weight figures, class by class
| RV class | Configuration | Dry weight | GVWR | Typical hitch % |
|---|
Treat this table as a starting point, not gospel. Two trailers with identical floorplans can leave the factory with meaningfully different dry weights depending on options, axle count and the year's build sheet, so the data plate riveted near your RV's entry door always wins the argument.
However you've been phrasing this search, this is the page
Fifth wheel pin weight calculator, travel trailer tongue weight calculator, can my truck tow my camper, RV cargo carrying capacity calculator, GCWR calculator for towing a trailer, toy hauler weight calculator, RV dry weight vs loaded weight, sway control calculator, weight distribution hitch setting calculator: the underlying math doesn't change depending on which phrase brought you here.
Five layers, one ledger
Most of this takes longer to read than to actually do. Grab your RV's data plate and your tow vehicle's door jamb sticker first, and the rest moves quickly.
Home base
Country picks units, currency and the trailer brake threshold for where you drive.
RV class
Pop-up to luxury fifth wheel, each with its own hitch-weight target baked in.
Stack the load
Water, propane and gear layered on top of dry weight the way a real trip does.
Tow vehicle
Tow rating, payload, GCWR and rear axle rating, checked as one system.
Read the ledger
Nine checks, loaded weight, binding limit named, plus a cost-per-km figure.
RV towing rules don't look the same on every continent
A trailer brake threshold that's perfectly normal in Texas can be illegal to ignore in Germany, and a tow vehicle combination that's standard practice in Alberta needs a completely different driving licence category in the UK. This ledger adjusts units, currency and the brake-law threshold to the country selected, because handing someone a US-shaped answer while they're towing in Australia helps nobody.
United States
The largest RV market on the planet by a wide margin, FMCSA and NHTSA-aligned brake thresholds, state-by-state variation on the details.
Canada
Strong travel trailer and fifth wheel culture, CMVSS-aligned figures, provincial brake-law thresholds that shift slightly by region.
Australia
Caravans and camper trailers under the GVM/GCM/ATM framework, with a notably lower brake-required threshold than North America.
New Zealand
Similar caravan culture to Australia, with its own licence-class thresholds tied to combination weight.
United Kingdom
Caravan towing tightly bound to driving licence category and test date, with MAM limits that catch newer drivers off guard.
Germany
Strict combination weight rules tied to licence class, with caravan culture concentrated around Bavaria and the North Sea coast.
France
Caravanning is a national pastime; licence categories and trailer braking rules follow the broader EU framework.
South Africa
Off-road trailer and caravan culture built around long-distance touring, with its own roadworthy and braking requirements.
Ireland
Smaller but steady caravan and motorhome ownership, following EU-aligned licence and braking frameworks.
Spain
Motorhome culture is especially strong here, with licence categories tied closely to combination MAM thresholds.
How the math behind this ledger actually works
Loaded weight, not dry weight
Fresh water adds roughly 8.3 lb per gallon, propane and gear stack on top, and the running total is what every downstream check actually uses.
Payload absorbs the hitch first
Pin and tongue weight are treated as part of the tow vehicle's payload pool, alongside passengers and cab cargo.
Sway risk from hitch percentage
Hitch weight as a share of total loaded RV weight is compared against the class-specific safe band.
SAE J684 hitch class match
Recommended hitch class follows the same industry weight breakpoints used across the towing equipment industry.
ISO 1726 fifth-wheel geometry
Fifth wheel and gooseneck pin-weight logic follows this coupling standard, applied differently than a conventional ball-mount tongue weight.
Country-specific brake thresholds
The point at which trailer brakes become mandatory shifts by country, flagged against your selected market.
Where to go once your loaded weight is sorted
This ledger answers the "what does my packed RV actually weigh" question. These cover everything else that comes with hooking a trailer to a truck and pointing it down the highway.
Working backward from GCWR to a maximum trailer figure
If you'd rather start from your tow vehicle's combined rating and solve for the heaviest RV it can legally pull, this reverse calculator does exactly that.
max trailer weight from GCWR · reverse towing solverPinning down your F-150 or Super Duty's actual numbers
Trim, cab and engine-specific payload and tow figures for the Ford lineup, useful before you trust any number printed on a window sticker.
F-150 payload by trim · Super Duty fifth wheel ratingThe full Ford model-by-model breakdown
Every current Ford that tows, mapped trim by trim, for owners cross-shopping a tow vehicle against their RV's pin or tongue weight.
Ford trim towing comparison · Ranger to Super Duty rangeDecoding your exact truck's build sheet by VIN
Skip the trim-average guesswork and pull the precise payload and tow figures tied to your specific vehicle's production data.
VIN-specific payload lookup · exact build configuration decoderSetting cold tyre pressure once you know the real axle load
A loaded fifth wheel or travel trailer changes both tow vehicle and trailer axle loads, and tyre pressure should follow that, not a generic door-jamb number.
trailer tire PSI calculator · loaded axle tyre pressureBudgeting fuel for the actual loaded trip
A loaded RV burns noticeably more fuel than an empty tow vehicle alone, and this tool prices that difference out per kilometre or mile.
RV trip fuel cost estimator · towing fuel budget calculatorDriving the rig across a border or just a state line changes the rulebook more than most owners expect. Check the state-by-state US trailer brake and licence threshold guide before a cross-country run, or the provincial Canadian towing weight and winter-condition reference if you're heading north. Towing a caravan or camper trailer down under has its own GVM and GCM quirks covered in the Australian caravan and camper trailer towing rules breakdown, and UK-based RV owners sorting out licence categories should start with the British MAM threshold and B+E entitlement explainer. For the GMC-specific half-ton through dually breakdown that pairs especially well with heavier fifth wheels, the GMC Sierra and Yukon towing reference covers the Duramax-equipped trucks built for exactly this kind of load. Everything this site offers lives one click away from the towing safety tool directory.
Questions RV owners actually ask before a trip
What's the actual difference between dry weight and the weight my RV tows at?
Dry weight, sometimes printed as UVW, is what the trailer weighs sitting empty on a factory scale with no propane, water, or dealer-installed options on board. The moment you fill a fresh water tank, that's roughly 8.3 lb added per gallon, plus propane, batteries, awnings, and whatever camping gear you're hauling. A trailer with a 6,800 lb dry weight commonly tows in the 8,200 to 8,800 lb range once it's actually packed for a trip, which is exactly the gap this ledger is built to close.
How much pin weight or tongue weight does my RV actually need?
Conventional travel trailers want roughly 10 to 15 percent of total loaded weight sitting on the hitch ball. Fifth wheels and gooseneck trailers run heavier, typically 15 to 25 percent on the pin, because that coupling sits forward over the bed rather than hanging off a rear bumper. Too little weight on the coupling invites sway at highway speed, too much overloads the tow vehicle's rear axle and can lighten the front steer tires enough to hurt handling, so this ledger scores both directions rather than just flagging one.
Can my truck or SUV actually tow my fifth wheel?
The trailer's tow rating only tells half the story. Your tow vehicle has its own GCWR, payload capacity and rear axle rating, and a fifth wheel's pin weight sits directly in your truck bed rather than hanging off a hitch, often consuming 1,500 to 3,000 lb of payload before passengers and gear are even loaded. Plenty of half-ton trucks are nominally rated to tow a given fifth wheel's trailer weight but run out of payload long before they reach that number, which is the exact failure mode this ledger's payload check is designed to catch.
What is CCC and why does it matter more than dry weight?
Cargo Carrying Capacity is the maximum combined weight of everything you add after the factory builds the unit: fresh water, propane, food, gear, passengers if it's a motorhome, and dealer-installed accessories. It's calculated as GVWR minus UVW minus the weight of a full fresh water tank and full propane. A trailer can look spacious and still have a surprisingly thin CCC, sometimes under 1,500 lb on lighter travel trailers, which fills up fast once a generator, bikes, and a stocked pantry are loaded in.
Why does my trailer sway at highway speed even though I'm under the tow rating?
Sway is rarely about total weight alone. It's usually a hitch weight percentage that's too low, a tow vehicle wheelbase that's too short relative to the trailer length, crosswind exposure on a tall-sided trailer, or worn weight-distribution hardware. Being comfortably under the tow rating doesn't protect against sway if the pin or tongue weight percentage is off, which is why this ledger runs a dedicated sway-risk check alongside the raw capacity numbers rather than treating tow rating as the only safety gate.
What towing standards does this calculator follow for RVs?
Tow vehicle ratings reference SAE J2807, the towing certification standard adopted across the truck and SUV industry. GVWR and GAWR labelling follows FMVSS 110. Fifth-wheel and gooseneck coupling geometry follows ISO 1726 and SAE J2638. Conventional hitch classes follow SAE J684. Trailer lighting and electrical interfaces follow ISO 11992 and ISO 1724, referenced wherever a connector or brake controller pairing is relevant to the build.