Free B2B tools

Sourcing tools for import buyers

Interactive calculators and worksheets for builders, contractors, and importers sourcing building materials from Chinese manufacturers. No signup, no spreadsheet gymnastics — plug in your numbers and get a defensible answer before you commit to a supplier.

The import math chain

Better numbers make better RFQs

The three calculators work as a chain: start with the CBM calculator to turn carton dimensions into shipment volume, feed that volume into the freight cost estimator for a shipping range on your lane, then drop the freight number into the landed cost calculator for the true per-unit cost. Most sourcing mistakes we see start with a spreadsheet that only compares FOB prices — these tools exist so your first conversation with a Chinese manufacturer already accounts for freight, duty exposure, and delivery cost. Pair them with the import guide and the supplier directory when you are ready to shortlist.