The Margin StackFrom $124.17/mo, plus the Eight-Week Analyst Launch $6,000 FREE
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Get a real read before you commit

A few of our tools are free to use. No long forms, no sales gate. See what your own data says, then decide whether you want the full picture.

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LiveCalculator, runs in your browser

Break-even ROAS calculator

Your break-even ROAS is 1 over your contribution margin, not a universal 4:1. Put five numbers in and read your real floor, live.

  • Contribution margin per order, in dollars and % of AOV
  • Your break-even ROAS floor, computed as you type
  • Sensitivity: the floor if your margin shifts ten points
Open the break-even ROAS calculator
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Contribution margin calculator

Step revenue down through discounts, landed COGS, shipping and fulfilment, fees and returns to what each order actually lets you keep.

  • The full step-down as a live waterfall
  • Contribution margin in dollars and % of revenue
  • The same definitions as The Math, end to end
Open the contribution margin calculator
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Margin-based LTV calculator

What a customer is actually worth in margin at 90, 180 and 365 days - not the revenue number that flatters everyone.

  • Margin LTV at three horizons
  • The revenue-LTV gap, side by side
Open it
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Discount impact calculator

What a sitewide code really costs in margin, and the volume lift you need before it pays for itself.

  • Margin given away per order
  • Required volume lift to break even
Open it
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Blended CAC + LTV:CAC calculator

Spend over new customers - no attribution model required - plus the ratio against margin LTV.

  • Blended and paid CAC
  • LTV:CAC on margin, not revenue
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No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Margin vs markup converter

Two-way converter for the oldest pricing confusion in retail, with the cost-to-price math shown.

  • Convert either direction, live
  • Reference table of common values
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No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Target MER calculator

Your break-even MER is set by your margin. Enter a profit target and read the account-wide efficiency you need.

  • Break-even and target MER
  • The ROAS vs MER distinction, explained
Open it
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Free shipping threshold calculator

Where to set the threshold so bigger baskets pay for the shipping you absorb.

  • Required extra basket value
  • A suggested minimum threshold
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No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

CM payback calculator

How many orders - and roughly how many days - before a new customer pays back their acquisition cost in margin.

  • Payback in orders and days
  • Works from CAC and margin per order
Open it
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Landed COGS calculator

Unit cost plus freight-in plus duty: the product cost that actually lands at your warehouse.

  • Landed cost per unit
  • Share of selling price
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No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Returns impact calculator

The margin tax your return rate quietly charges on every order, with the assumptions stated.

  • Effective margin per order
  • The returns tax, in dollars and % of margin
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No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Price increase calculator

How much volume you can afford to lose on a price rise and still bank the same margin.

  • New margin per unit
  • Tolerable volume loss, iso-margin
Open it
No form, no email. The math runs on the page.
LiveCalculator, runs in your browser

Break-even units calculator

Fixed costs over margin per unit: the honest launch math, rounded up.

  • Break-even units and revenue
  • Months to break even at your run rate
Open it
No form, no email. The math runs on the page.
LiveTemplate, editable in your browser

Ecommerce P&L template

A monthly P&L with the contribution margin lines generic templates bury - editable on the page, downloadable as CSV.

  • Live subtotals as you type
  • CSV download and a monthly close checklist
Open it
No form, no email. The math runs on the page.

These tools give you a genuine slice of what the full platform does. When you are ready for the whole picture, reconciled across your business, that is what Blufire is built for.

Ready to see what you are actually keeping?

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