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Car and Caravan Weight Calculator

Article by · 11 October 2019 ·

How did you go? Let us know your results in the comments below.

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23 Comments

  • comment-avatar

    Greg Kingdom

    A big help. But does a weight distribution hitch change these figures and can I keep this as an app?

    • mm

      Brendan Batty

      Hi Greg, thanks for the question. No, a weight distribution hitch doesn’t affect these numbers – all a WDH does is transfer weight from the rear axle of the tow vehicle to the front axle ‘distributing’ the weight more evenly across the vehicle. Check out a video here describing the process – https://www.youtube.com/watch?v=3-PyN0EY3Ww

  • comment-avatar

    carl

    i am under weight every ware but my caravan is over weight by 300 kg i dont understand

    • mm

      Brendan Batty

      Send us a screen-shot Carl, and we might be able to help you. editor@timetoroam.com.au

    • comment-avatar

      Ge

      Double check that next to your final answer if there is a minus sign you are under by kg.

  • comment-avatar

    Peter

    I am under weight everywhere but my GVM is over weight by 300 kg. I dont understand, like Carl.

  • comment-avatar

    Gary Althorpe

    Hi Brendan, I am confused by your details included in the latest RAC magazine re vehicle weights. Page 30 refers to a Toyota Fortuna and the relevant GCM and GVM values.
    I don’t think your maths are correct, and would appreciate your comments.
    Regards
    Gary Althorpe

  • comment-avatar

    Jos Willemsen

    Hi I am confused also as I am under weight on all sides but over on the Gvm!
    I changed the figures around cause I am confused by the tare and kerb weight as the caravan has a tare and agg weight and as I understand the tare is the caravan and the agg is the loaded caravan?

  • comment-avatar

    Daniel

    Hi does anyone know how the towball weights work at with the caravan does as ive got a ball weight off 138 kg and my caravan weighing at 900kgs empty am i under the limit of towing weight ??? And i also have a 94 pajero 3ltr v6 that does tow it well tho as tows upto 2500kgs at the ball can anyone tell me if im fine for towing an 16ft poptop caravan tho????

  • comment-avatar

    julie

    hi dont understand the weights in the calculation as they came back as – does this mean im ok to tow the van with is says
    -440kg too heavy
    gcm -592kg
    gvm -598kg
    caravan overweight -438kg

    • comment-avatar

      Chook

      Hi Julie….a minus (-) means it’s under the limit…all OK. (if I’ve read it correctly)

  • comment-avatar

    Megs

    Our vehicle worked out safe on all accounts, but, the compliance plate on van axle group load capacity is lower than the GTM.
    Why would a manufacturer of a new van quote an axle load less than the GTM.

  • comment-avatar

    Brian

    I have been weighed by RTA Queensland I put in the weights they put in they show me under by 150kg your numbers tell me I am over by400 ??

    • comment-avatar

      Hi Brian, have you got all the numbers around the right way. Often people mix up aggregate and total mass.

  • comment-avatar

    Trent

    Hi all just trying to figer out what suspension kit to put underneath my van with the van fully loaded it weighs 1800kg but hooked upto the car it weighs 1600kg so i understand that i have a 200kg ball weight but my question is do i need suspension to handle at least 1800kg or 1600kg cheers for any info

  • comment-avatar

    Tim Proctor

    I have a 2018 Toyota 200 Sahara with a Lovells 3800kg GVM upgrade and a Lovells 4000kg BTC upgrade. My ball weight is 310Kg and Van has an ATM of 4000Kg. What is my maximum GCM?

  • comment-avatar

    Kevin

    Hi Brendan, can the tow car be to light Compared to the caravan it’s towing even it meets all the requirements

  • comment-avatar

    Jack

    This showing my weights to be over by 720 gcm, which is not correct. this is not set this up correctly as seen by the previous comments

  • comment-avatar

    John ashton

    The calculator is a great idea, very useful, after a trip to the engineers and a couple of small mods my Jayco and Pajero sport are now legal. Thanks again for a great idea, Cheers John

  • comment-avatar

    Brian Barrett

    Thank you for the use of the calculator, I’m under on all counts.

  • comment-avatar

    Trevor

    Your pic showing the tow ball scale is not going to show the full weight unless we can see clearance under that jocky wheel!!

  • comment-avatar

    Frank

    After nutting out the figures for days and putting the rig over the weigh bridge, I then discover your calculator. It’s very pleasing to see a calculator that is so easy to use.

  • comment-avatar

    David

    Hi TTR, I have used the calculator and am under on all accounts. I have tried to recreate the calculations on a spreadsheet and I am close. A question I have is whether the GCM (max) is the sum of: the ATM (loaded weight of the VAN), the GVM (loaded weight of the CAR) and the Towball down weight. If yes, then I don’t think this is how the TTR calculator works.
    A second question is whether the Towball down weight is transferred to the CAR when hitched, thus increasing the Payload capacity when unhitched.
    Thanks for your help.
    David


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