ROAS Calculator

What is ROAS?

ROAS means return on ad spend. It compares the revenue attributed to advertising with the amount spent on that advertising. The formula is ROAS = revenue / ad spend.

A ROAS of 3.60x means the ads generated $3.60 in attributed revenue for each $1 of ad spend. It does not mean you earned $3.60 in profit. Revenue still has to cover product or service costs, ad costs, and other business expenses.

Why ROAS matters

ROAS helps you judge whether a campaign is bringing in enough revenue to support its ad cost. You can use it when deciding whether to keep a campaign running, shift budget between campaigns, test a new offer, or change your pricing.

ROAS alone does not show whether an ad campaign is profitable. Gross margin helps put revenue in context because it estimates what remains after the direct cost of the goods or services sold. Break-even ROAS is the revenue-to-spend ratio needed for gross profit to cover ad spend, before other overhead. The formula is 1 / gross margin.

Your actual business can have costs beyond ad spend and direct product costs, such as payroll, shipping, payment fees, and returns. Consider those costs before increasing a campaign budget or hiring to handle more sales. Ask a qualified accounting professional if you need help deciding which costs belong in your analysis.

How to use this ROAS calculator

1. Enter the ad spend for the campaign or period you want to review. Use the same currency and time period as your revenue figure.
2. Enter revenue attributed to those ads. Base it on the same attribution method and reporting period you use to assess the campaign.
3. Enter gross margin as a percentage. Use the margin for the products or services sold through the ads, not your markup.
4. Enter the number of orders. The calculator uses this to estimate cost per acquisition by dividing ad spend by orders.
5. Review ROAS alongside break-even ROAS, profit after ad spend, and cost per acquisition. Check whether the result includes the costs that matter to your business before making a budget decision.

ROAS calculator example

How to read your ROAS results

ROAS shows attributed revenue relative to ad spend. Compare it with break-even ROAS to see whether gross profit from those sales covers the advertising cost. If ROAS is above break-even, the campaign clears that basic test, but that does not guarantee the business made a net profit.

Profit after ad spend estimates gross profit from attributed revenue minus ad spend. Treat it as a partial view, not a complete income statement. If you sell products with different margins, an average gross margin can hide the difference between a campaign that sells high-margin items and one that sells low-margin items. Consider calculating each campaign separately when the product mix differs materially.

How to improve your ROAS

1. 01

   Check the full cost of each sale

   Review product costs, discounts, shipping, payment fees, and refunds. Update your gross margin when costs or prices change. A campaign can appear stronger than it is if the margin figure does not reflect what you actually keep.

2. 02

   Find where interested buyers drop off

   Review the ad promise, landing page, checkout, and mobile experience as one path. Make the product price, delivery terms, and return policy easy to find. Test a clearer offer or a simpler checkout, then compare results using the same attribution approach.

3. 03

   Shift budget based on comparable results

   Compare campaigns over matching periods and with consistent revenue attribution. Consider reducing spend on ads that repeatedly fall short of your break-even level, while testing changes before moving a large share of the budget.

4. 04

   Improve the value and margin of each order

   Consider bundles, complementary products, or pricing changes that increase the value of an order without eroding margin. Check whether any promotion brings in revenue but leaves too little gross profit to cover ad costs.

Common ROAS mistakes

• Treating revenue as profit

  ROAS uses revenue, not profit. Include gross margin and review other operating costs before concluding that a campaign is profitable.

• Mixing reporting periods or attribution methods

  Comparing ad spend from one period with revenue credited over a different period can distort the result. Use consistent reporting dates and attribution settings when comparing campaigns.

• Calling every order a new customer

  The calculator estimates cost per acquisition from orders. If the order count includes repeat purchases, the result is cost per order rather than the cost to acquire a unique new customer.

• Using one margin for products with different costs

  An average margin may not represent the products a specific campaign sells. Consider reviewing campaigns by product or product group when their direct costs differ.

The ROAS formula

Key terms

ROAS

Return on ad spend: attributed revenue divided by ad spend.

Break-even ROAS

The revenue-to-ad-spend ratio at which gross profit covers ad spend, calculated as 1 / gross margin.

Gross margin

The share of revenue remaining after direct costs of goods or services sold.

Cost per acquisition

Ad spend divided by the number of orders entered. It represents cost per new customer only when the order count reflects new customers.

Attributed revenue

Revenue credited to advertising under the attribution method used in your reporting.