Lara GuevaraSupply Chain expert (Product and Service)

How to Calculate Dimensional Weight: The 139 Formula #shorts #businessgrowth

25 Sept 2026 · 1 min

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0:33

Lara Guevara shows how to calculate dimensional weight using the 139 formula: length times width times height divided by 139. Carriers charge based on whichever is higher, dimensional weight or actual weight. She recommends documenting your top SKUs and dimensions to prepare for optimizing logistics costs.

Chapters

2 things before tomorrow. First, the formula: length times width times height divided by 139. Whichever comes out bigger, that number, or your product's actual weight, is what you get billed for. Try it in your own box tonight, it only takes a minute. Second, once you've got the number, start a simple document with it. Your top SKU, dimensions, your 3PL contact info, Your negotiated storage trips. Then tomorrow I'll show you exactly how I lay it out.

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