Marketing & Ecommerce

ROAS Calculator

What this does

Measure return on ad spend as a revenue multiple, with profit over spend and a breakeven verdict included.

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How to use it

Using the roas calculator

  1. 01

    Pull attributed revenue

    Use the same attribution window your team plans against, applied consistently week to week.

  2. 02

    Enter the true ad spend

    Include management fees and creative production if you want the honest number.

  3. 03

    Read against breakeven

    1× means the ads paid for themselves only; most businesses need roughly 3×+ to be genuinely profitable.

Good to know

ROAS versus ROI

ROI divides profit by cost; ROAS divides revenue by ad cost. They diverge sharply once margins thin out; a 2× ROAS on a 30% margin business actually loses money. Know which question you are asking.

Breakeven ROAS is a margin calculation

Your true breakeven equals 1 ÷ gross margin. At a 60% margin you need about 1.67× just to break even; at 25% margins you need 4×. Every ROAS target should start from that arithmetic.

Attribution shapes everything

Platforms credit themselves generously. Triangulate with blended metrics; overall revenue growth against total spend; before scaling budgets on platform-reported ROAS alone.

How it's calculated

The math behind this calculator

ROAS = attributed revenue ÷ ad spend Profit over spend = revenue − spend Breakeven at ROAS = 1×

ROAS divides the revenue your platform attributes to advertising by what that advertising cost, expressing the result as a multiple. Anything above 1× covers the ad bill itself; true profit requires margins to absorb product costs and overhead too.

Assumptions & limitations

  • Attribution follows your platform’s model; last-click numbers undercount upper-funnel work.
  • Revenue excludes refunds and chargebacks unless netted first.
  • Compares one campaign, channel or period consistently.

Worked example

Generating $12,000 of attributed revenue from $4,000 of ads is a 3× ROAS; $8,000 of profit over ad spend before other costs.

FAQ

Frequently asked questions

What ROAS is considered good?
It depends on margins. Common guidance calls 4× strong for ecommerce, but a high-margin software firm may thrive at 2× while a low-margin reseller needs 6×.
Should I include agency fees in spend?
For internal truthfulness yes; fully loaded spend reveals whether campaigns survive real costs. Many teams track both figures.
Can ROAS be negative?
No; the ratio bottoms at 0× when revenue is zero. The profit row can be negative though, showing exactly how much money the ads burned.

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