Cost Calculator AI
Business & StartupAd Performance

Return on Ad Spend (ROAS) Calculator

Calculate Return on Ad Spend (ROAS as a multiplier and percentage), break-even ROAS thresholds, and net gross profit after advertising expenses.

Advertising Revenue & Campaign Spend

Return on Ad Spend (ROAS) Formulas

ROAS Multiplier = Revenue from Ads / Ad Spend; ROAS % = ROAS Multiplier × 100; Break-Even ROAS = 1 / Product Gross Margin %
  • ROAS Multiplier: Dollars of gross top-line revenue generated for every $1.00 spent on paid advertising.
  • Break-Even ROAS: The exact threshold where ad spend equals gross margin dollars (below this number, campaigns lose money).

Step-by-Step Worked Example

Scenario: Generating $60,000 in e-commerce sales on $15,000 ad spend with 50% product gross margin

Calculation Steps:

  1. ROAS Multiplier = $60,000 / $15,000 = 4.00x ($4.00 revenue per $1.00 spent)
  2. ROAS Percentage = 4.00 × 100 = 400.0%
  3. Break-Even ROAS Target = 1 / 0.50 = 2.00x (200.0%)
  4. Gross Profit After Ad Spend = ($60,000 × 0.50) - $15,000 = $15,000 profit
Result: Campaign delivers a 4.00x ROAS (400%), exceeding the 2.00x break-even target and generating $15,000 in net gross profit.

How to Use This Calculator

  1. 1Enter total revenue directly attributed to ad campaigns.
  2. 2Input total advertising media spend.
  3. 3Specify your product or service gross profit margin percentage.

Assumptions & Limitations

  • ROAS measures top-line revenue efficiency, not bottom-line net profit.
  • Break-even ROAS relies on accurate direct product COGS margins.

Frequently Asked Questions

Why is a 3x ROAS not always profitable?

If your product has a 25% gross margin, your break-even ROAS is 1 / 0.25 = 4.0x. A 3.0x ROAS in that business loses money on every sale because production costs exceed the remaining margin.

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