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DIM divisor comparison
Compare how DIM divisors such as 139 and 166 affect the billable weight of a package.
Source: Standard published dimensional divisors · Free, no signup
| Divisor | Dimensional weight | Billable weight | What governs | Published rate, zone 5 |
|---|---|---|---|---|
| 139 | 22 lb | 22 lb | dim | $28.28 |
| 166 | 19 lb | 19 lb | dim | $26.42 |
| 194 | 16 lb | 16 lb | dim | $23.41 |
| 250 | 13 lb | 13 lb | dim | $21.69 |
This box is billed at 22 lb under divisor 139, so dimensional weight applies until the package actually weighs more than 22 lb. Below that, you are paying for empty space. The divisor is a negotiated term. Moving from 139 to 166 is a real request to make, and it applies to every package large enough to be dimensioned, not just one lane or service. Rates shown are FedEx published Ground list rates before any discount, fuel or accessorials.
Review your DIM divisor across all shipments.
This calculator shows the effect on one package. We can use your shipment data to estimate the total cost of dimensional weight and assess whether a different divisor is worth negotiating.
What is dim divisor?
A dimensional divisor turns package volume into a billable weight: length times width times height, divided by the divisor. Carriers bill the greater of actual and dimensional weight. A lower divisor gives a higher billable weight, so moving from 166 to 139 raises cost on every package large enough to be dimensioned, with no change to the rate card.
Review the terms behind your shipping costs.
We negotiate carrier agreements and check invoices against them. Our fees are based on recovery or documented savings, and the initial review is free.
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