Margin Ruler

FBA Profit Calculator

Calculates FBA fulfillment fee, referral fee, storage residence, and net profit given product cost, price, category, weight, size tier, and months on hand…

Amazon FBA is active. Other marketplace modules stay marked as planned until audited.

Published fee inputs, dated assumptionsNo account or emailPrivate unless you save
Methodology

FBA Profit Calculator. Estimates per-unit FBA profit after unit cost, referral fee, closing fee where applicable, simplified fulfillment fee, and blended storage multiplied by per-product months on hand.

Fee basis: source-state planning estimate; modeled fee basis is under review and not a Seller Central reconciliation. Last source-state review: 2026-06-07.

Source-state status

planning estimate. Planning estimate — fee basis is source-dated and under review, not a Seller Central reconciliation.

Modeled in the estimate

  • fba fulfillment fee 2026 — Planning estimate: this fee basis is not independently primary-source verified (secondary_only) and its source date has passed. Treat as directional, not a Seller Central reconciliation. report_mode
  • referral fee 2026 — Planning estimate: this fee basis is not independently primary-source verified (secondary_only) and its source date has passed. Treat as directional, not a Seller Central reconciliation. report_mode
  • monthly storage fee — Planning estimate: this fee basis is not independently primary-source verified (secondary_only) and its source date has passed. Treat as directional, not a Seller Central reconciliation. report_mode

Explicitly excluded

  • inbound placement service fee — Excludes Amazon inbound placement service fees (vary by split shipments and placement choices).
  • low inventory level fee — Excludes Amazon low-inventory-level fees (depend on your days-of-supply, not modeled here).

Guidance only

  • fba fuel logistics surcharge 2026 — A 2026 fuel/logistics surcharge on FBA fulfillment fees has been reported but is not yet confirmed here; treat as a possible additional cost.

Review the Amazon seller-fee source-state register →

Read the formula, inclusions, exclusions, and fee-category audit →

Calculator
Inputs
Enter your operating figures for a planning estimate based on published rate cards and industry midpoints.
We may earn a commission if you click a vendor link. External vendors are independent third parties.
Result
Fill in your operating figures above to get a planning estimate.

Worked example

Example inputs: $39.99 price, $12 unit cost, 1.5 lb small-standard, general category, 3 months on hand

Net profit $17.94 per unit at 44.9% margin — $39.99 price, $12.00 cost, $10.05 in Amazon fees.

  • Dominant cost driver: Unit cost (COGS) ($12.00 of $10.05 total fees)
  • Decision threshold: Fees consume 25% of the selling price.
  • Sensitivity: Margin status, largest fee component, approximate price floor, max COGS, implied max ACoS before the unit turns negative, and the explicit distinction that FBA months-on-hand is per-product storage residence while aggregate turn rate belongs in the Inventory Carrying Cost calculator.
OptionResult
Unit cost (COGS)$12.00
Referral fee$6.00
FBA fulfillment fee$3.77
Storage (total)$0.28
Closing fee$0.00

Example inputs — your own numbers will differ. A planning estimate, not a quote.

How this is calculated

Estimates per-unit FBA profit after unit cost, referral fee, closing fee where applicable, simplified fulfillment fee, and blended storage multiplied by per-product months on hand.

Formula: net_profit = selling_price - product_cost - referral_fee - closing_fee - fulfillment_fee - (storage_fee_monthly × months_on_hand)

Fee basis: Fee basis: 2024 published FBA rate-card midpoints; 2026 fee-change scope reviewed 2026-05-08. Known 2026 surcharges and program-specific fees are excluded unless explicitly modeled.

FBA Profit Calculator

Use this FBA Profit Calculator tool to estimate costs and plan next steps. This hub explains how to use the tool, what affects estimates, and where to go next. Below are the most common drivers people see for this kind of job.

What typically drives the estimate

  • Referral fee rate (category-dependent: 8%–17%+)
  • FBA fulfillment fee (size/weight tier)
  • Monthly FBA storage fee and long-term storage
  • Inbound shipping cost to FBA warehouses
  • COGS, return rate, and landed cost

Related pages

Disclosure: Affiliate disclosure: We may earn a commission when you engage a vendor through links on this site. This does not affect the price you pay or the cost estimates shown, which are calculated independently of vendor relationships. Calculator results are planning estimates only — not financial guarantees.

Canonical: https://www.marginruler.com/tool/fba-profit-calculator/

Review vendors before committing — no obligation.

Worked example

Example inputs: $39.99 price, $12 unit cost, 1.5 lb small-standard, general category, 3 months on hand

Net profit $17.94 per unit at 44.9% margin — $39.99 price, $12.00 cost, $10.05 in Amazon fees.

  • Dominant cost driver: Unit cost (COGS) ($12.00 of $10.05 total fees)
  • Decision threshold: Fees consume 25% of the selling price.
  • Sensitivity: Margin status, largest fee component, approximate price floor, max COGS, implied max ACoS before the unit turns negative, and the explicit distinction that FBA months-on-hand is per-product storage residence while aggregate turn rate belongs in the Inventory Carrying Cost calculator.
OptionResult
Unit cost (COGS)$12.00
Referral fee$6.00
FBA fulfillment fee$3.77
Storage (total)$0.28
Closing fee$0.00

Example inputs — your own numbers will differ. A planning estimate, not a quote.

How this is calculated

Estimates per-unit FBA profit after unit cost, referral fee, closing fee where applicable, simplified fulfillment fee, and blended storage multiplied by per-product months on hand.

Formula: net_profit = selling_price - product_cost - referral_fee - closing_fee - fulfillment_fee - (storage_fee_monthly × months_on_hand)

Fee basis: Fee basis: 2024 published FBA rate-card midpoints; 2026 fee-change scope reviewed 2026-05-08. Known 2026 surcharges and program-specific fees are excluded unless explicitly modeled.

FBA Profit Calculator

Use this FBA Profit Calculator tool to estimate costs and plan next steps. This hub explains how to use the tool, what affects estimates, and where to go next. Below are the most common drivers people see for this kind of job.

What typically drives the estimate

  • Referral fee rate (category-dependent: 8%–17%+)
  • FBA fulfillment fee (size/weight tier)
  • Monthly FBA storage fee and long-term storage
  • Inbound shipping cost to FBA warehouses
  • COGS, return rate, and landed cost

Related pages

Disclosure: Affiliate disclosure: We may earn a commission when you engage a vendor through links on this site. This does not affect the price you pay or the cost estimates shown, which are calculated independently of vendor relationships. Calculator results are planning estimates only — not financial guarantees.

Canonical: https://www.marginruler.com/tool/fba-profit-calculator/

Regional pages

Regional FBA Profit Calculator pages

Use the regional FBA-profit pages when fulfillment assumptions, inbound costs, storage pressure, or marketplace fee context may affect SKU-level contribution margin. The local pages keep the profit stack tied to a planning region without changing the formula. Browse below; the calculator math is the same on each regional planning page.

Australia

Canada

New Zealand

United States