AdCulator

ROAS Calculator

Calculate return on ad spend — or solve for revenue or ad spend.

ROAS Calculator

Return on ad spend — solve for any value.

Solve for
$

Revenue attributed to the ads.

$

Total amount spent on ads.

ROAS
—

Enter Revenue and Ad spend to see the result.

What is ROAS (return on ad spend)?

ROAS — return on ad spend — is the revenue you earn for every unit of currency put into advertising. Written as a multiple (4×), a ratio (4:1) or a percentage (400%), it is the headline efficiency metric in performance marketing: at a glance, is a campaign generating more than it costs?

In marketing reports it is the standard way to compare how hard each channel, campaign or audience is working — a higher ROAS means each dollar of ad spend is returning more revenue.

How to calculate ROAS

To calculate ROAS, divide the revenue a campaign generated by the amount you spent on it:

ROAS = Revenue ÷ Ad spend

For example, $40,000 in revenue from $10,000 of ad spend is a ROAS of 4× (4:1, or 400%). Because the formula links three values, you can rearrange it to solve for whichever one you are missing — which is exactly what the calculator above does:

  • Find ROAS — Revenue ÷ Ad spend ($30,000 ÷ $6,000 = 5×)
  • Find Revenue — ROAS × Ad spend (3× × $8,000 = $24,000)
  • Find Ad spend — Revenue ÷ ROAS ($50,000 ÷ 4× = $12,500)

A worked example

If a campaign generates $40,000 in revenue from $10,000 of ad spend, the return on ad spend is:

4.00× = $40,000 ÷ $10,000

That is $4 of revenue for every $1 spent. Working the other way: if you were targeting a 5× return on the same $10,000 budget, the calculator would show you need to generate $50,000 in revenue.

How to use this calculator

  1. Choose which value to solve for — ROAS, revenue, or ad spend.
  2. Enter the two values you already know. Results update instantly as you type.
  3. Switch currency if you're planning in something other than dollars.
  4. Use Copy shareable link to send the exact scenario to a colleague — the numbers are saved in the URL.

What's a good ROAS?

It depends on your margins — the often-quoted "4:1 is good" is only a rough default. A thin-margin business needs a much higher ROAS to profit than a high-margin one. The real target is comfortably above your break-even ROAS (below). To model profit across conservative, realistic and optimistic scenarios, use the Campaign Forecast.

What is a break-even ROAS?

Break-even ROAS is the return at which ad-driven gross profit exactly equals ad spend — below it you lose money, above it you profit:

Break-even ROAS = 1 ÷ profit margin

For example, a 25% profit margin needs a 4× ROAS just to break even; a 50% margin only needs 2×. This is why "a good ROAS" is meaningless without knowing your margin. OurCampaign Forecast computes break-even and models profit for you.

ROAS vs ROI, CPA, and profit

  • ROAS = revenue ÷ ad spend — a top-line efficiency measure that ignores product costs.
  • ROI = profit ÷ total cost — a bottom-line profitability measure that includes cost of goods and overheads.
  • CPA = cost per acquisition — what each conversion costs.

Because ROAS ignores product costs, always read it against your break-even ROAS. To trace the full chain — clicks to conversions to revenue to profit — use theCampaign Forecast, together with the upstreamCPC and CTRmetrics.

Frequently asked questions

What does ROAS stand for?
ROAS stands for return on ad spend — the revenue generated for every unit of currency spent on advertising. A ROAS of 4× (or 4:1) means you earned $4 in revenue for every $1 spent.
How do you calculate ROAS?
ROAS = revenue ÷ ad spend. For example, $40,000 in revenue from $10,000 of ad spend is a ROAS of 4× (4:1).
What is ROAS in marketing?
In marketing, ROAS is the standard measure of how efficiently advertising turns spend into revenue. It lets you compare campaigns, channels and audiences on a like-for-like basis — a higher ROAS means each dollar of ad spend is returning more revenue.
What is a good ROAS?
It depends on your margins. A business with thin margins needs a much higher ROAS to be profitable than one with high margins. The often-quoted 4:1 is only a rough default — work out your break-even ROAS and aim comfortably above it.
What is a break-even ROAS?
Break-even ROAS is the return at which ad-driven gross profit equals ad spend: break-even ROAS = 1 ÷ profit margin. A 25% margin needs a 4× ROAS just to break even; a 50% margin needs 2×. Anything above break-even is profit.
What is the difference between ROAS and ROI?
ROAS compares revenue to ad spend only. ROI (return on investment) compares profit to total cost, so it also accounts for the cost of goods, fulfilment, and other expenses. ROAS is a top-line efficiency measure; ROI is a bottom-line profitability measure.
Is ROAS a ratio or a percentage?
Both express the same thing. ROAS is usually written as a ratio or multiple (4:1 or 4×), but you can also state it as a percentage (400%). It is not a dollar amount — it is revenue divided by ad spend, so a 4× ROAS means $4 back for every $1 spent.
How can I improve my ROAS?
Raise revenue per customer (higher average order value, better conversion rate, repeat purchases) or lower acquisition cost (better targeting, creative, and bidding). Cutting spend on poorly performing audiences and shifting it to winners usually lifts blended ROAS.

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