How Do You Work Out Postal Charge?


If you are selling physical goods, you have to factor in postage charge in your product price calculation.

What are the formula one can use to calculate the postage charge?


asked Jan 12 '10 at 19:55
871 points
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3 Answers


You should be able to go to the post office and get postage rates based on weight and dimensions of what you're sending. You can usually categorize shipping by Domestic (e.g. Canada to Canada), near Domestic (e.g. Canada to the US) and International (e.g. Canada to Europe).

Then when you price your product, you leave the shipping out of the equation until the order is complete, and then use an algorithm to apply the appropriate rates based on the weight of the items and the combined dimensions for shipping. After a while, you can start applying actual rates from having made shipments to make your estimates more accurate.

Also, be aware that if you are going to be doing a lot of shipping, you can probably negotiate a bulk rate with the postal service which will help bring down the cost.

answered Jan 13 '10 at 02:27
4,692 points


The US Post Office offers a link to do this for you: link text In addition, they have some easy flat rate shipping options which are simple and work well for packages under 80 pounds - "if it fits, it ships". link text My suggestion is to either use the flat rate option and / or offer your clients the link to the Post Office site so they can see what shipping will cost.

answered Jan 13 '10 at 03:20
Warren E. Hart
2,181 points


Another option is to charge a set % of the total sale for shipping.

answered Jan 13 '10 at 17:50
Starr Ed
948 points

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