The brochure at the 4x4 show said it can carry close to a tonne. You buy the ute and add a canopy, roof rack, drawers, a fridge and a rooftop tent. Then you put two people up front, fill the jerry cans and head off.
Still plenty of room, right?
Probably not as much as you think. Payload is a budget. Everything you add after the ute leaves the factory comes out of it, and your canopy is usually the biggest fixed item on the list.
Use the calculator below to see where your build sits, then read on for what eats into payload and how to keep more of it.
Payload Calculator
You'll need two numbers. Find them on the label in your driver's door jamb, in your owner's manual, or on the manufacturer's spec sheet for your exact model and trim:
- GVM: the most your ute can legally weigh, fully loaded.
- Kerb weight: your ute with a full tank and nothing else on board.
[PAYLOAD CALCULATOR PLACEHOLDER]
Prefer to Do It by Hand?
- Subtract kerb weight from GVM. That's your payload. If your plate only gives a tare weight with 10 L of fuel, add the rest of a full tank first. Diesel weighs about 0.84 kg per litre.
- Subtract your fixed accessories: canopy, racks, drawers, bull bar and so on. Use published weights, not guesses.
- Subtract everything else: passengers, water, extra fuel, gear and any towball weight.
- What's left is your margin. Try to keep 10–20% spare as a buffer [1].
Tip: To know for sure, weigh your loaded ute at a public weighbridge [2].
Keep reading: Why It's Smaller | Key Terms | Accessory Budget | Towing
Why Your Payload Is Smaller Than You Think
Payload is worked out from kerb weight. That's your ute with a full tank of fuel, but no people, cargo or accessories. Some spec sheets list tare weight instead. Tare is the same empty ute, but with up to 10 L of fuel in the tank [7]. If your payload's been worked out from tare, filling an 80 L tank can use about 58 kg of it [1].
Accessories come off next, because kerb weight doesn't include things like bull bars, roof racks or canopies. A steel bull bar alone can weigh around 70–95 kg [2]. In 4X4 Australia's example of a dual cab with 900 kg of available payload, two adults plus a bull bar and winch already use about 280 kg of it [1].
Key Terms
| Term | What it means |
|---|---|
| GVM (Gross Vehicle Mass) | The most your vehicle can legally weigh, fully loaded, including towball downward weight. |
| Kerb weight | The vehicle with a full tank of fuel, but no people, cargo or accessories. |
| Tare weight | The same as kerb weight, but with only 10 L of fuel in the tank instead of a full tank. |
| Payload | GVM minus kerb weight gives you your available payload. |
| GCM (Gross Combination Mass) | The maximum your vehicle and trailer can weigh together, including everything loaded in both. |
| ATM (Aggregate Trailer Mass) | The maximum your trailer or caravan can weigh with everything loaded on it, including the weight it puts on your towball. |
| Towball downward weight | The weight a trailer puts on your towball, also called tow bar download. A common rule people use is 10% of the trailer's loaded weight, and it counts towards your vehicle's GVM. |
Definitions based on NZ Transport Agency, Traillite and Ford New Zealand [4][6][7].
Accessory Weight Budget
Your canopy is usually the most significant accessory on your ute, and it stays on. So do the rack, drawers and bull bar. Together, these fixed accessories take the first and biggest bite out of your payload, every day.
Before you buy, add up the published weight of everything you plan to fit. You'll find weights on each product page.
For example, a Centurion Canopy (75 kg) with an MK4 Cantilever Roof Rack (23 kg) comes to 98 kg, which you can find in your build summary on our website.
Watch how we tracked every kilo in the Hilux Build Series for ideas on setting your own accessory budget.
Towing: The Weight People Forget
When you hitch up a trailer or caravan, some of its weight rests on your towball. That weight counts towards your ute's GVM and uses up some of your payload [1]. A common method people use to calculate the towball weight is around 10% of the trailer's loaded weight [1].
Example: Towing a 3,000 kg caravan
Say your Ford Ranger has a GVM of 3,230 kg. With passengers, ute accessories and gear on board, it weighs 2,930 kg. That leaves 300 kg before you reach its GVM.
Now hitch up a caravan weighing 3,000 kg fully loaded. If its downward towball weight is 300 kg (10% of the caravan's loaded weight), your ute now weighs 3,500 kg, right at its GVM. There's no weight allowance left for extra gear, and no buffer.
The caravan still weighs 3,000 kg overall: 2,700 kg is supported by its own axle and wheels, and 300 kg is now supported by the ute through the towball. Together, they weigh 5,930 kg on the road, so check that against your GCM too.
Check your caravan manufacturer's towball range and the placard on your tow bar, then weigh your actual setup at a public weighbridge.
Towing? A lighter canopy and accessories leave more room for towball weight. Add your towball weight to the calculator and check your margin again.
Plan Your Setup Around Your Payload
Every Utemaster product page lists its weight. Add products to your build summary and you'll see the total weight and price of your setup in one place, before you buy.
Choose your ute to see the canopies, lids and accessories built for it. Then check the total against your payload.
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Install Process
Frequently Asked Questions
Where do I find my GVM?
Check the label in your driver's door jamb, your owner's manual, or the manufacturer's spec sheet for your exact model. In NZ, the GVM recorded on the motor vehicle register is the legal figure.
How much does a ute canopy weigh?
It depends on material, size and vehicle. The Utemaster Centurion Canopy weighs 75 kg. Add the MK4 Cantilever Roof Rack (23 kg) and the pair comes to 98 kg. Always check the published weight for your vehicle.
Does towball weight (ball weight) count towards GVM?
Yes. Your ute carries it, so it uses payload just like passengers or gear.
What happens if I'm over my GVM?
This happens more often than people think. NZ certifiers have reported more vehicles at or very close to their GVM, often utes fitted with camper bodies or custom trays [5].
- Fines: In NZ, you can't load a vehicle above its GVM or GCM, and overloading can lead to fines.
- Insurance: Overloading can put a claim at risk.
- Safety: Too much weight affects braking, handling and component life.
Is a GVM upgrade the answer?
Sometimes, but it's not a fix for everything.
A GVM upgrade lets your ute legally carry more weight. It usually means stronger suspension and an engineer signing it off.
- It usually doesn't let you tow more: your GCM (the combined limit for your ute and trailer) normally stays the same [1][3].
- You'll need to tell your insurer [1], and the rules differ between NZ and Australia.
If you're thinking about one, talk to a specialist first.
The simplest fix is building light from the start, especially if you plan to tow. Every kilo you save on accessories is a kilo you don't need an upgrade to carry.
Will a GVM upgrade let me tow more?
Not necessarily. It raises what the vehicle can carry, but usually doesn't change GCM.
Is tare weight the same as kerb weight?
No. Kerb weight includes a full tank of fuel. Tare weight is the same, but with only 10 L of fuel [7]. If your spec sheet gives tare, add the rest of a full tank before you work out your payload.
Sources:
- 4X4 Australia, Towing weights explained: what tare, payload, GVM and GCM actually mean (May 2026). 4x4australia.com.au
- Roam Offroad, GVM, GCM, ATM and Tow Ball Mass Explained (Oct 2026). roamoffroad.com.au
- Unsealed 4X4, What is GVM and payload and how towing affects it. unsealed4x4.com.au
- NZ Transport Agency, Vehicle dimensions and mass. nzta.govt.nz
- LVVTA, Watch for GVM overloading, MTA Radiator Magazine (Aug 2019). lvvta.org.nz
- Traillite, GVM, tare weight and payload… what do they mean? blog.traillite.co.nz
- Ford New Zealand, What do the different vehicle weights mean? ford.co.nz
General information only. Always check your own vehicle's plates and manufacturer specifications.
