3PLGuys · Free Tools

Calculators for people
who ship things

The numbers that decide your shipping costs — Amazon fees, dimensional weight, freight class — worked out with current rate schedules. Free, no login, no email, built to be shared.

✓ Current fee schedules✓ Shareable result links✓ No signup, ever

01 / Free tool

Amazon FBA Calculator

Every 2026 Amazon fee, netted against your real margin.

Referral, fulfillment, the 3.5% fuel surcharge, storage over time, inbound placement, and the low-inventory fee — itemized per unit, then rolled into profit, margin, ROI, breakeven price, and max profitable TACoS.

✓ Jan 2026 rate card✓ All 8 size tiers✓ Profit & TACoS✓ Shareable results

Open the FBA calculator→

Per-unit breakdown

Sale price$24.99

Referral fee (15%)−$3.75

Fulfillment + fuel 3.5%−$4.58

Storage · placement · returns−$1.44

Landed cost−$6.50

Net profit / unit$8.72

Margin34.9%

02 / Free tool

DIM Weight Calculator

Know your billable weight before the carrier bills it.

Dimensional weight for UPS, FedEx, USPS, and DHL with 2026 divisors — see when volume beats scale weight, what each carrier charges you for, and how a smaller box changes the math.

✓ UPS · FedEx · USPS · DHL✓ 2026 divisors✓ Billable weight compare✓ Box optimization

Open the DIM calculator→

Billable weight

18 × 14 × 12 ÷ 139

= 21.8 lb DIM weight

vs 9.0 lb on the scale

UPSFedExUSPSDHL

You're billed for 22 lb — 2.4× your actual weight.

03 / Free tool

Freight Class Calculator

Density in, NMFC class out — on the current 2025 rules.

Pallet dimensions and weight to shipment density and estimated freight class on the NMFC 13-sub scale in effect since July 19, 2025. Full class chart 50–500, reclassification fee guide, multi-pallet support.

✓ 13-sub density scale✓ All 18 classes✓ Reclass-risk warnings✓ Multi-pallet

Open the freight class calculator→

Est. Freight Class

92.5

Sub 7 · 10–<12 pcf

NMFC 13-sub density scale

04 / Free tool

Pallet & Container Load Planner

Your cartons, packed in 3D — pallets, containers, or a 53' trailer.

Enter your carton list and get an optimized load plan you can orbit in 3D: layer-by-layer build order, cube utilization, estimated NMFC freight class, and a printable load sheet your warehouse can pack from.

✓ Interactive 3D plan✓ Pallet · container · trailer✓ Layer build order✓ PDF load sheet

Open the load planner→

Load plan · Pallet #1 of 4

48″ × 40″ GMA

⟳ drag to orbit · scroll to zoom

Why are these free?

We're a 3PL in Paramount, CA — we live inside these numbers every day, quoting freight, prepping FBA shipments, and packing parcels. Keeping the tools accurate is a side effect of doing the work. Use them, share them, link to them from your own guides — that's the whole deal.

Spot an outdated rate? Tell us and we'll fix it.

Calculators for people who ship things