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Reverse pricing calculator

Most sellers pick a price and hope. This works backwards: choose your margin, and get the price that mathematically delivers it — with percentage fees handled correctly.

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Reverse Pricing Calculator

Instead of guessing a price and checking the margin, start from the margin you want. The formula handles percentage fees correctly: price = fixed costs ÷ (1 − %fees − %ads − target margin).

Target
%
Percentage deductions
%
%
Fixed costs per unit
$
$
$

How reverse pricing works

Referral fees and ad spend scale with the price, so you cannot just add them to your costs. Dividing your fixed per-unit costs by one minus all the percentages gives the exact price that leaves your target margin after everything. The receipt also shows the break-even price — the floor below which every unit loses money.

Frequently asked questions

Why is the required price so high?

Because 15% fees + 8% ads + 25% margin means only 52% of the price is left to cover fixed costs. Lower the target margin or trim ad spend and watch the price fall.

What if the calculator says the target is impossible?

When fees, ads, and target margin add to 100% or more there is no price that works — no amount of revenue leaves anything for costs. Reduce one of the percentages.

Should product cost be the invoice price or landed cost?

Landed cost — use the landed cost calculator first so freight and duty are included.

All free seller calculators

Amazon

All Amazon →

Everything Amazon takes from a sale, worked out from the official 2026 US rate card: referral and FBA fulfilment fees, size tiers, storage, and the ACOS ceiling your ads can afford.

Amazon FBAReferral, fulfillment & storage fees from the official 2026 rate card, with auto size-tier detection.Break-Even ACOSBreak-even ACOS, target ACOS for your desired net margin, and maximum cost-per-click.Size Tier CheckerYour 2026 Amazon size tier, dimensional weight, and exactly what to shrink to drop a tier.Amazon FBA UKAmazon UK referral, fulfilment by size band, storage and VAT in GBP — profit, margin, ROI and break-even.Amazon FBA EU (DE)Amazon EU (DE) referral, fulfilment by size band, storage and VAT in EUR — profit, margin, ROI and break-even.Amazon FBA CanadaAmazon Canada referral, fulfilment by size band, storage and GST/HST in CAD — profit, margin, ROI and break-even.Amazon FBA AustraliaAmazon Australia referral, fulfilment by size band, storage and GST in AUD — profit, margin, ROI and break-even.Amazon FBA IndiaAmazon India referral, fulfilment by size band, storage and GST in INR — profit, margin, ROI and break-even.Amazon FBA JapanAmazon Japan referral, fulfilment by size band, storage and Consumption tax in JPY — profit, margin, ROI and break-even.

Marketplaces

All Marketplaces →

Each marketplace stacks fees differently — on shipping, per order, per listing, or through ads. Pick your channel and see what one order really nets you.

eBay13.6% final value fee on item + shipping, automatic $0.30/$0.40 per-order tier, Promoted Listings.Walmart8–15% referral by category, WFS fulfillment, ROI and break-even price.EtsyListing + 6.5% transaction + payment processing, with US and UK presets and Offsite Ads.TikTok Shop8% referral fee plus creator affiliate commission — see your real payout per order.Shopify / PayPalShopify Payments, Stripe or PayPal processing plus your monthly platform bill spread per order.

Pricing & Profit

All Pricing & Profit →

Channel-independent maths every seller needs: what a unit truly costs to land, what margin a price leaves, and what price a target margin requires.

Landed CostFreight, duty & tariffs turned into the true per-unit cost behind every pricing decision.Reverse PricingStart from your target margin and get the exact price to charge — % fees handled correctly.Margin & MarkupMargin vs markup for any product in any currency, plus target-margin pricing mode.
Amazon changes fees every January.
Get one email when the rate card changes — no spam, just the update.
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