Courier charges from Ahmedabad to Australia are dependent on the actual weight or the volumetric weight of the courier, whichever is higher. To calculate the volumetric weight of the package, simply multiply all the dimensions of the box together, i.e. length x breadth x height. Then divide the resultant number by 5000 (if you’re measuring the dimensions in cms) or 305 (if measuring in inches) to give you the final volumetric weight