Margin Ruler

Margin Leak Calculator

Calculates your actual margin after fees and shipping, and the minimum price required to hit your target margin. Flags products that are losing money or r…

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

Margin Leak Calculator. Estimates per-order margin after product cost, platform fees, and shipping, then compares the result to a target margin.

Fee schedule/source date: generic marketplace fee model verified 2026-05-08.

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.

Margin Leak Calculator

Use this Margin Leak 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

  • Net revenue per order and gross margin percent
  • Order discount and promo code usage rate
  • Price-match events and manual override frequency
  • Chargeback and refund losses not captured elsewhere

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://marginruler.com/tool/margin-leak-calculator/

Review vendors before committing — no obligation.

Margin Leak Calculator

Use this Margin Leak 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

  • Net revenue per order and gross margin percent
  • Order discount and promo code usage rate
  • Price-match events and manual override frequency
  • Chargeback and refund losses not captured elsewhere

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://marginruler.com/tool/margin-leak-calculator/

Regional pages

Regional pages

Margin Ruler keeps a regional page for every active country so calculators stay tied to the local landing context. Browse below; the calculator math is the same on each.

Australia

Canada

New Zealand

United States