There is no single Amazon shipping cost calculator, because “shipping” on Amazon means three unrelated cost lines: freight-in (factory to fulfillment center), FBM postage (your shelf to the buyer’s door), and MCF (Amazon fulfilling orders you sold somewhere else). Each has its own tools, and a tool built for one bucket cannot price the other two.
Scope note. This guide covers the cost of moving boxes. It does not cover Amazon’s platform fees — referral, FBA fulfillment, storage. Those live in a separate comparison: Free FBA Fee Calculator: which one to trust, which scores Amazon’s official Revenue Calculator against the Helium 10, Jungle Scout, AMZScout and SellerApp equivalents. Use that page for platform fees, this one for freight and postage; together they cover landed cost.
Every price, free tier and capability below was checked against the vendor’s own page on 2026-07-28. Where a page does not state something, this guide says so rather than filling the gap.
The Three Buckets, and Why One Calculator Can’t Do All Three
| Cost bucket | Route | Who charges you | Priced by |
|---|---|---|---|
| Freight-in | Supplier factory → Amazon FC or 3PL | Freight forwarder / carrier | Freight marketplaces (Freightos, Flexport) |
| FBM postage | Your warehouse → buyer | Parcel carrier (USPS, UPS, FedEx) | Label platforms (Buy Shipping, Pirate Ship, Shippo, ShipStation) |
| MCF | Amazon FC → buyer on a non-Amazon channel | Amazon | Amazon’s MCF fee calculator |
The buckets differ in unit of measure, not just price: freight is quoted per shipment on volumetric weight and lane, postage per parcel on zone and dimensions, MCF per unit on size tier. A number from one bucket is meaningless in another. If you have not settled which channel a SKU belongs in, start with FBA vs FBM.
Freight-In Calculators: Factory to Fulfillment Center
Freightos Amazon FBA Freight Calculator
Freightos runs a marketplace of freight forwarders plus a dedicated FBA calculator. Its FBA calculator page states the tool is “specially designed for Amazon FBA shipments, to calculate shipping costs from your supplier’s factory to an Amazon fulfillment center location,” covering “trucking, air and ocean shipping” (data checked 2026-07-28).
Two disclosures on that page matter more than the quote itself. It says the calculator “includes all fees and surcharges available for trucking, air and ocean shipping” and accounts for dimensional weight — but that “it does not include customs duties associated with specific commodities.” It also warns that because the estimator “relies on live data from real freight companies, it may not have global coverage for every route you search.” So a blank result is a coverage gap, not a zero.
The Freightos home page advertises “Get Free Freight Quotes” while also prompting “Don’t have an account yet? Sign up now” for marketplace access. The FBA calculator page itself does not state whether registration is required, so treat the account question as unconfirmed.
Good for: a defensible freight-in number early, before you have a forwarder relationship. Weak on: duties, and any lane outside its live-data coverage.
Flexport Rates
Flexport’s rates search covers air, ocean FCL and ocean LCL, and the page displays “174.6K Available routes” and “392.7K Product offerings” (data checked 2026-07-28). Access is gated: the page’s calls to action are “Sign up for free today” and an instruction to sign up “to get a free estimate with customized cargo details,” alongside a promotion of “up to 10% off Your first 5 Bookings.”
The page carries no statement about how current or accurate the displayed rates are, and no mention of Amazon FBA. Treat it as a general importer tool that happens to serve FBA lanes, not an FBA-specific one.
Good for: route discovery and a second opinion against Freightos. Weak on: you cannot look before you register, and there is no published freshness guarantee.
Neither tool prices what happens after the freight lands: carton labeling, box content and FC appointments are separate (FBA prep software), and Incoterms disputes sit upstream of any calculator (vetting a China sourcing agent).
FBM Postage Calculators: Your Shelf to the Buyer
Amazon Buy Shipping (official)
Buy Shipping is built into Seller Central and lets you “purchase shipping and print labels for UPS, Amazon Shipping, FedEx, USPS, and other major carriers—all in one place.” Amazon’s page claims “Amazon-negotiated shipping rates that are over 31% lower on average compared to retail ground rates for UPS, FedEx, and USPS” (US marketplace, sell.amazon.com, data checked 2026-07-28).
The performance angle is the real argument: Amazon states that with Buy Shipping “we refund costs for claims when customers report that packages don’t arrive,” and sellers “get 12x more Amazon-paid refunds for A-to-z claims” — a multiple Amazon’s own footnote benchmarks “compared to claims received for orders shipped on time not using Amazon Buy Shipping.” That protection can outweigh a slightly cheaper label elsewhere — claim mechanics in Amazon A-to-z guarantee claims.
The page does not state whether using Buy Shipping itself carries a fee, so treat “free to use” as unconfirmed. It also prices only Amazon orders — off-Amazon channels are out of scope.
Pirate Ship
Pirate Ship’s pitch is structural rather than featural. Its home page says “No monthly fees, payment fees, or hidden costs” and “No monthly fees—we’re paid by the carriers, not by you!”, and advertises “Save up to 87% off USPS® & UPS® rates.” Its rates page states it “passes through the cheapest shipping rates with no additional costs” and “No monthly fees, label costs, markup, or hidden gotchas” (data checked 2026-07-28). A free rate quote sits on that rates page, plus a separate USPS rate calculator.
One honesty note on fit: the site names Etsy and eBay sellers and refers generally to “shippers” — it does not state Amazon sellers as a target audience, and the pages checked did not describe an Amazon order integration. The rate pages also do not state whether an account is needed to view rates.
Good for: the cheapest USPS/UPS labels with no platform tax, and a genuinely free rate check. Weak on: Amazon-specific workflow claims are simply not made by the vendor.
Shippo
Shippo publishes a real free tier: Starter — Free, with “Up to 30 labels per month,” 1 user login, best discounts on USPS, UPS, FedEx and DHL Express, and the option to “Connect your own carrier account (5cts/label).” Pro starts at $17/mo (or “$205/year,” billed as “10% savings”) covering “1-200 labels per month,” scaling to 10,000 labels, up to 5 user logins, free carrier account connections and branded tracking; past that ceiling the page lists “$0.08 per label beyond 10,000 labels/month.” Premier is “Contact us” with unlimited shipments and 15+ user logins. The page references “40+ carriers” and hosts a shipping calculator (goshippo.com/pricing, data checked 2026-07-28).
Prices are shown in $ on the US pricing page; the page does not state a currency code explicitly.
Good for: low-volume FBM sellers who want a permanent free allowance instead of a trial. Weak on: 30 labels a month is genuinely small, and the 5¢/label charge on your own carrier account is easy to miss.
ShipStation
ShipStation’s pricing page is a volume slider. At its floor setting of 50 shipments per month, the tiers read Starter $14.99/month (3 users), Standard $29.99/month (10 users, marked “MOST POPULAR”), and Premium $349.99/month (15 users) — all three in USD on the US pricing page. Volume scales substantially, with the slider topping out at 100,000 shipments per month at higher prices. There is a “30-day free trial” with “No credit card required” and “Cancel anytime” (data checked 2026-07-28). A “Shipping Rates Calculator” is listed in its Resource Hub.
Amazon appears among its marketplace integrations, but the pricing page gives no detail on what that integration does, so do not size the Amazon workflow from this page alone.
Good for: multi-channel sellers who need seat counts and automation rules. Weak on: there is no free tier, only a trial, and the jump from Standard to Premium is steep.
MCF: Amazon’s Own Calculator for Off-Amazon Orders
Multi-Channel Fulfillment has Amazon fulfill orders from “non-Amazon sales channels” — “Amazon, DTC, social platforms, and more.” Amazon publishes an estimator at supplychain.amazon.com/mcf/pricing, headed “Estimate your monthly Multichannel Fulfillment (MCF) fees,” with the explicit caveat: “Use this MCF fee calculator as a guide only” (data checked 2026-07-28).
Four figures from those official pages, all US marketplace:
- Fuel and logistics surcharge: “A 3.5% fuel and logistics-related surcharge applies to MCF fulfillment fees in the US,” effective 2026-05-02.
- Holiday peak: “Holiday peak fulfillment fees apply October 15, 2026–January 14, 2027.”
- Remote area surcharge: “100% for standard sized items and 200% for oversized items.”
- Multi-unit discount: “Save up to 50% on per-unit fulfillment fees when you ship multi-unit orders through MCF,” with orders “discounted based on four tiers.”
Delivery speeds are named on the MCF product page: “Standard: Delivers to customers in 3 business days” and “Expedited: Delivers to customers in 2 business days.” Eligible sellers “can save up to 15% on MCF fulfillment fees and earn up to a $1 FBA credit per MCF unit shipped with Preferred Pricing.” Neither page states a monthly subscription fee for MCF.
Per-unit rates by weight band are not printed on the pricing page — Amazon distributes them as a downloadable rate card, so any third-party page quoting exact MCF per-unit dollars is secondhand. The surcharge stack matters: the same unit priced in September and in November differs by the peak fee plus 3.5%, the kind of drift covered in Amazon’s 2026 fee changes.
Amazon Shipping Cost Calculator Comparison, Side by Side
All rows verified against vendor pages on 2026-07-28. “Not stated” means the vendor page is silent, not that the answer is no.
| Tool | Bucket priced | Free access | Published price | Named coverage |
|---|---|---|---|---|
| Freightos FBA Calculator | Freight-in | “Get Free Freight Quotes”; account status not stated on calculator page | Not stated | Trucking, air, ocean; excludes customs duties |
| Flexport Rates | Freight-in | Sign-up required for estimates | Not stated | Air, ocean FCL, ocean LCL |
| Amazon Buy Shipping | FBM postage | Inside Seller Central; fee to use not stated | Not stated | UPS, Amazon Shipping, FedEx, USPS, “other major carriers” |
| Pirate Ship | FBM postage | Free rate quote; “no monthly fees” | $0 platform fee | USPS, UPS |
| Shippo | FBM postage | Starter free, 30 labels/mo | Pro from $17/mo (USD page) | 40+ carriers |
| ShipStation | FBM postage | 30-day trial, no card | $14.99 / $29.99 / $349.99 per month at 50 shipments (USD, US page) | Multi-carrier, multi-marketplace |
| Amazon MCF calculator | MCF | Official, “guide only” | Not stated (rate card download) | US marketplace, Standard and Expedited |
Easyship was shortlisted; its pricing page timed out on all three attempts on 2026-07-28, so it is left unscored rather than filled in from memory.
What Every One of These Leaves Out
- Customs duties and tariffs. Freightos states plainly that its FBA calculator excludes them. Duty is a separate line, driven by HTS code and origin, and it can exceed the freight itself.
- Amazon’s platform fees. No shipping calculator here prices the referral fee or the FBA fulfillment fee. That is the job of the FBA fee calculators, and the arithmetic of stacking both is in Amazon FBA fees and profit.
- Prep, labeling and inbound placement. Between the freight quote and the FC receipt sit prep and placement charges none of these tools model.
- Returns. FBM return postage and MCF return handling are absent from every quote above.
- Rate freshness. Only Freightos publishes a coverage caveat; Flexport’s rates page carries no accuracy statement. Re-quote before you commit inventory.
Frequently Asked Questions
Is there one Amazon shipping cost calculator that covers everything?
No. As of 2026-07-28, no tool checked here prices freight-in, FBM postage and MCF together. Amazon’s own tooling splits the job too: Buy Shipping handles FBM labels, the MCF calculator handles off-Amazon fulfillment, and freight-in is left to third-party marketplaces.
Does Amazon charge extra to use Buy Shipping?
Amazon’s Buy Shipping page does not state a fee for using the tool, and it does not state that it is free either. Because the page is silent, this guide does not assert either answer — check current terms in Seller Central before modeling it as zero.
Which FBM postage tool is cheapest?
On published pricing, Pirate Ship is the only one with no platform fee — it states it is “paid by the carriers, not by you.” Shippo’s Starter tier is free up to 30 labels a month; ShipStation has only a 30-day trial. Cheapest label is a separate question from cheapest platform, and turns on your zone, weight and carrier mix.
Do freight calculators include customs duties?
Freightos explicitly says its FBA calculator does not. Flexport’s rates page makes no statement about duties either way. Budget duty separately in every case.
Should I use MCF or a third-party 3PL for off-Amazon orders?
The MCF calculator gives you Amazon’s side of that comparison, but note the surcharge stack: 3.5% fuel and logistics in the US, plus holiday peak fees from 2026-10-15 to 2027-01-14, plus remote-area surcharges of 100% standard / 200% oversize. Price a peak-season month, not an average one, before comparing against a 3PL quote.
Conclusion
Match the calculator to the bucket. Use Freightos for a first freight-in number and Flexport as a registered cross-check — and add duty separately, because neither includes it. For FBM postage, Pirate Ship prices labels with no platform fee, Shippo gives 30 free labels a month, ShipStation buys automation and seats, and Buy Shipping trades a possibly higher label price for A-to-z claim protection. For MCF, use Amazon’s estimator as “a guide only,” and model a peak-season month with the surcharges applied.
Then hand the output to a platform-fee tool — the FBA fee calculator comparison — because shipping cost and Amazon’s fees are two halves of one landed-cost model.