Free ROAS Calculator
Calculate your return on ad spend, break-even ROAS, and target advertising performance. Understand how much revenue your ads generate and whether your campaigns are profitable.
Campaign details
Enter your advertising and product figures.
Total amount spent on your advertising campaign.
Sales revenue attributed to this advertising spend.
Your revenue remaining after product costs, before ad spend.
Profit margin you want to keep after product costs and ads.
Return on ad spend
4.00x
Revenue generated for every 1 unit spent on ads.
Break-even ROAS
1.67x
Minimum ROAS to cover product costs and ads.
Target ROAS
2.22x
ROAS needed for your desired profit margin.
Profit after ads
$1,400.00
Gross profit minus advertising spend.
ACOS
25.00%
Advertising cost as a share of revenue.
Gross profit
$2,400.00
Revenue minus product costs.
Net profit margin
35.00%
Profit after product costs and ads.
Target performance
This calculator assumes the entered revenue is attributed to the advertising spend and that gross margin accounts for product costs. It does not include additional expenses such as shipping, payment processing, agency fees, or overhead unless you include them in your margin calculation.
How to Calculate and Improve Return on Ad Spend
Learn how ROAS works, find your break-even advertising performance, and set more realistic targets for your ecommerce campaigns.
What Is Return on Ad Spend (ROAS)?
Return on Ad Spend (ROAS) is a marketing metric that measures the revenue generated by your advertising compared with the amount spent on ads. It helps ecommerce businesses evaluate campaign performance, compare advertising channels, and understand how efficiently their marketing budget generates sales.
For example, if you spend $1,000 on a campaign and generate $4,000 in attributed sales, your ROAS is 4x. This means every dollar invested in advertising generated four dollars in revenue.
ROAS Formula
The ROAS formula is straightforward:
Return on Ad Spend
ROAS = Advertising Revenue ÷ Advertising Spend
Suppose your advertising campaign generates $8,000 in attributed revenue and costs $2,000. Divide $8,000 by $2,000 to get a 4x ROAS. Use the calculator above to enter your own figures and calculate the result instantly.
What Is a Good ROAS?
There is no universal good ROAS. Your ideal return depends on your gross profit margin, product costs, fulfilment expenses, and desired profit. Businesses with lower margins generally need a higher ROAS to cover costs, while businesses with higher margins may be profitable at a lower ROAS.
Instead of relying on a general industry benchmark, calculate your break-even ROAS first. Then set a target that leaves enough margin for operating expenses and profit.
How to Calculate Break-Even ROAS
Break-even ROAS tells you the minimum advertising return required to cover product costs and ad spend. It uses your gross profit margin to estimate the revenue needed to cover those costs.
Break-Even ROAS Formula
Break-Even ROAS = 1 ÷ Gross Profit Margin
Use gross profit margin as a decimal, not a percentage.
For example, a store with a 40% gross profit margin has a break-even ROAS of 2.5x. This means it needs $2.50 in attributed revenue for every $1 spent on advertising to cover product costs and ad spend. Other operating expenses are not included unless accounted for in your margin.
How to Calculate Target ROAS
Target ROAS is the return you want your advertising campaigns to achieve. It should account for your gross profit margin and the profit margin you want to retain after advertising.
Target ROAS Formula
Target ROAS = 1 ÷ (Gross Margin − Desired Profit Margin)
For example, if your gross margin is 60% and your desired profit margin is 15%, your target ROAS is approximately 2.22x. The calculator uses these two inputs to estimate the advertising return required to reach your target margin.
ROAS vs. ACOS: What Is the Difference?
ROAS and ACOS measure advertising efficiency from opposite directions. ROAS shows how much revenue you earn for each unit spent on advertising. ACOS shows what percentage of attributed revenue goes toward advertising costs.
- ROAS: Revenue divided by advertising spend.
- ACOS: Advertising spend divided by revenue, multiplied by 100.
For example, a 4x ROAS is equivalent to a 25% ACOS. Both metrics help evaluate campaign performance, but neither should be treated as a complete measure of business profitability.
How to Use This Free Online ROAS Calculator
- Select the currency for your campaign figures.
- Enter your total advertising spend.
- Enter the revenue attributed to your ads.
- Enter your gross profit margin after product costs.
- Set your desired profit margin to calculate target ROAS.
- Review your ROAS, ACOS, break-even point, and estimated profit.
This free ROAS calculator works for ecommerce stores, dropshipping businesses, B2B campaigns, and paid advertising across Facebook, Instagram, Google, TikTok, and other platforms. It runs in your browser, so you can calculate campaign performance without creating an account.
Tips to Improve Your Advertising ROAS
- Improve product pages and checkout experiences to increase conversion rates.
- Test ad creatives, offers, and audiences to find more effective campaigns.
- Monitor product margins instead of optimizing for revenue alone.
- Review campaign attribution and avoid counting the same revenue across multiple channels.
- Use your break-even and target ROAS as benchmarks when adjusting advertising budgets.
Frequently Asked Questions
Common questions about ROAS, advertising profitability, and campaign performance.
What is ROAS?+
ROAS stands for Return on Ad Spend. It measures how much revenue your advertising generates for every unit of currency spent. For example, a 4x ROAS means you generate $4 in attributed revenue for every $1 spent on advertising.
How do I calculate ROAS?+
Divide the revenue attributed to your advertising campaign by its total advertising spend. For example, if a campaign generates $5,000 in revenue from $1,000 in ad spend, your ROAS is 5x.
What is a good ROAS for ecommerce?+
A good ROAS depends on your product margins, operating costs, customer acquisition strategy, and business goals. A 4x ROAS may be profitable for one store but unprofitable for another. Calculate your break-even ROAS before setting a performance target.
What is break-even ROAS?+
Break-even ROAS is the minimum return on ad spend required to cover product costs and advertising expenses, before other operating expenses. It is calculated by dividing 1 by your gross profit margin expressed as a decimal. For example, a 50% gross margin produces a 2x break-even ROAS.
How do I calculate target ROAS?+
To calculate target ROAS when you have a desired profit margin, divide 1 by the difference between your gross profit margin and desired profit margin. For example, with a 60% gross margin and a 15% desired profit margin, target ROAS is approximately 2.22x.
What is the difference between ROAS and ACOS?+
ROAS measures revenue generated per unit of advertising spend, while ACOS (Advertising Cost of Sales) measures advertising spend as a percentage of attributed revenue. They are inverse metrics: ROAS = revenue ÷ ad spend, while ACOS = ad spend ÷ revenue × 100.
How do I calculate break-even ROAS for dropshipping?+
For dropshipping, calculate your gross profit margin after subtracting supplier product costs and any other costs you include in your product margin. Divide 1 by that margin as a decimal. For example, if your gross margin is 30%, your break-even ROAS is approximately 3.33x. Include shipping and transaction costs in your margin calculation when relevant.
Can I use this ROAS calculator for Facebook ads?+
Yes. You can use this calculator for Facebook and Instagram ads, Google Ads, TikTok Ads, Amazon Ads, and other paid advertising channels. Enter the ad spend and attributed revenue reported by the platform or your analytics system.
Can I use a ROAS calculator for B2B campaigns?+
Yes, if you can measure revenue attributed to your advertising. For B2B campaigns with long sales cycles, consider using qualified pipeline value or closed-won revenue consistently. Avoid comparing leads or pipeline value with actual sales revenue as if they were the same metric.
What is the difference between ROAS and ROI?+
ROAS focuses specifically on revenue generated by advertising relative to ad spend. ROI measures the return on an investment after accounting for the relevant costs. ROAS does not automatically mean a campaign is profitable because it does not account for product costs or other business expenses.