About DIMWeightFinder
DIMWeightFinder is a set of free calculators for US e-commerce sellers and small-business shippers, built around one question set: what will this shipment be billed as, and why?
What the site does
The tools cover parcel billable weight for UPS, FedEx, USPS and DHL Express, LTL freight class and density, volume and load planning, and packaging checks for sellers. Every tool runs in your browser. There are no accounts, no uploads and no prices: the site works out weights, densities and counts, and leaves rating to the carriers.
Who it is for
Marketplace sellers on eBay, Etsy, Shopify and Amazon who get billed for air when a box is too big. Small warehouses and offices that ship LTL and need a defensible class estimate. Anyone who has opened a carrier invoice, found an adjustment, and wanted to check the math before paying it.
How it stays accurate
One dataset, official sources, checked dates and fixed test cases, described on the methodology page. Where a rule is genuinely unsettled, such as linear foot triggers that live in individual tariffs, the site says so instead of printing a confident number.
Contact
The site is run by Page and Pixel Studio. Reach us through the contact page.