These free calculators help private-label Amazon sellers check storage costs before inventory ships. Each one runs in your browser and needs no email. Results are estimates based on the numbers you enter.
FBA vs AWD vs 3PL Storage Cost Calculator
Enter one shipment with your own freight and 3PL quotes and compare cost per unit across FBA, AWD and a 3PL using Amazon's 2026 US rates.
Compare storage costsAged Inventory Surcharge Projector
Enter your inventory batches and daily sales to project the FBA aged inventory surcharge at each monthly snapshot on the 15th. See when each batch reaches each age band, including the jump at 271 days from $1.50 to $5.45 per cubic foot.
Project aged feesQ4 Storage Fee Planner
Compare holding all Q4 stock in FBA, where October to December storage is $2.40 per cubic foot for standard-size non-dangerous goods versus $0.78 the rest of the year, with keeping it in AWD and replenishing in chunks. You get a ship-by date from AWD or your 3PL for each replenishment.
Plan Q4 storageFree Storage Costs Audit
Want a second look at your numbers? Book a short call and we will go through your storage and inbound costs with you.
Book a free auditRates: Amazon 2026 US published rates, checked Oct 2026. Results are estimates, not a quote or a bill from Amazon.
Free FBA inventory checklists
Want a checklist to work through, too? Pick the one for your season. Both are free PDFs sent to your inbox.
Get our free Q4 FBA Inventory Checklist: what to check from now through December to keep stock selling and storage costs under control.
Form not showing? Get the Q4 checklist here.
Get our free Q1 FBA Inventory Checklist: what to clean up January through March so last season’s leftovers do not eat into this year’s margin.
Form not showing? Get the Q1 checklist here.