Glossary

What Is ROAS?

ROAS (Return on Ad Spend) measures revenue earned per dollar spent on ads. Learn how to calculate ROAS and what a good ROAS looks like.

  • 2 min read
  • Updated October 2026

ROAS explained

ROAS is the number that tells you whether your ads are printing money or burning it. It is the single most important metric for anyone running paid advertising, and the one number every media buyer checks before their morning coffee.

The formula is dead simple: Revenue from Ads divided by Ad Spend. You spent $1,000 on Meta ads and generated $4,000 in revenue? Your ROAS is 4x. But simple math does not mean simple decisions.

Here is where most people get confused: a "good" ROAS depends entirely on your margins. If you sell a $100 product with $30 COGS, $10 shipping, and $10 in overhead, your breakeven ROAS is 2x. Anything above that is profit. But if your margins are thin (like 20%), you might need a 5x ROAS just to break even.

ROAS also varies wildly by platform, industry, and funnel stage. Prospecting campaigns (cold traffic) typically have lower ROAS than retargeting campaigns. That is normal and expected. A 1.5x ROAS on prospecting that feeds a 10x retargeting campaign is a healthy system.

The trap most advertisers fall into is optimizing purely for ROAS without considering scale. A campaign doing 8x ROAS on $50/day spend is nice, but a campaign doing 3x ROAS on $5,000/day is building an empire. Sometimes you need to accept lower ROAS to scale.

Examples

  1. 1An ecommerce store spends $2,000 on Facebook ads and generates $8,000 in sales, achieving a 4x ROAS
  2. 2A DTC brand targets 3x blended ROAS across all channels because their product margins are 65%
  3. 3A media buyer scales a campaign from $500/day to $2,000/day while maintaining 2.5x ROAS on cold traffic
  4. 4An agency reports 6x ROAS on retargeting but 1.8x on prospecting, with a blended 3.2x across the full funnel

Related terms

CPMCPM (Cost Per Mille) is an advertising metric that represents the cost an advertiser pays for 1,000 impressions of their ad. "Mille" is Latin for thousand. If your CPM is $10, you pay $10 every time your ad is shown 1,000 times.Read the definitionCTRCTR (Click-Through Rate) is the percentage of people who click on an ad after seeing it. It is calculated by dividing the number of clicks by the number of impressions, then multiplying by 100. A CTR of 2% means 2 out of every 100 people who saw the ad clicked on it.Read the definitionCPA (Cost Per Acquisition)CPA (Cost Per Acquisition) is the average cost of acquiring one customer or conversion through paid advertising. It is calculated by dividing total ad spend by the number of conversions. If you spend $1,000 and get 50 purchases, your CPA is $20.Read the definitionMedia BuyerA media buyer is a marketing professional who plans, purchases, and manages paid advertising campaigns across platforms like Meta (Facebook/Instagram), TikTok, Google, and YouTube. Their goal is to acquire customers profitably by optimizing ad spend, targeting, creative strategy, and campaign structure.Read the definitionRetargetingRetargeting (also called remarketing) is an advertising strategy that shows ads to people who have previously interacted with your brand (such as visiting your website, viewing a product, adding to cart, or engaging with your social media content) but did not complete a desired action.Read the definitionSplit Testing (A/B Testing)Split testing (also called A/B testing) is the practice of running two or more versions of an ad, landing page, or marketing element simultaneously to determine which version performs better. Traffic is split evenly between variants, and the winner is determined by whichever achieves the best results on a chosen metric.Read the definition
All glossary terms

Common questions about ROAS

What is a good ROAS?
A "good" ROAS depends on your profit margins. For most ecommerce businesses, 3x-4x ROAS is considered healthy. But a high-margin brand (70%+ margins) can profit at 2x, while a low-margin business might need 5x or higher. Know your breakeven ROAS first.
What is the difference between ROAS and ROI?
ROAS measures revenue per ad dollar: it only looks at ad spend vs revenue. ROI (Return on Investment) factors in ALL costs: product cost, shipping, overhead, salaries, etc. ROAS is a marketing metric. ROI is a business metric. You can have a great ROAS and still lose money if your costs are too high.
How do I improve my ROAS?
Three levers: better creatives (higher CTR lowers your effective CPC), better targeting (higher conversion rate), and better offers (higher average order value). Of these, creative is usually the fastest win. Testing new ad creatives regularly is the most reliable way to improve ROAS.
Should I measure ROAS on individual ads or overall?
Both. Track ROAS at the ad level to find winners and kill losers. But make decisions based on blended ROAS (across all campaigns) because prospecting feeds retargeting. Killing a low-ROAS prospecting campaign can tank your high-ROAS retargeting too.

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