Free roas calculator
See exactly what your ads return. Enter the revenue from your ads, your ad spend, and your profit margin — the calculator returns your ROAS as a ratio (e.g. 4.0x) and a percentage, plus the break-even ROAS your margin requires to turn a profit — updated live, as you type.
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Estimates only, based on the values you enter. Not financial advice.
Results are estimates. Consult a professional.
What is ROAS (return on ad spend)?
ROAS, or return on ad spend, is the amount of revenue your advertising generates for every dollar you put into it. It is the single clearest read on whether a campaign is pulling its weight: a ROAS of 4.0x means every $1 of ad spend brought back $4 in revenue. Marketers express it either as a ratio (4:1, often written 4.0x) or as a percentage (400%) — they mean exactly the same thing. This ROAS calculator returns both the moment you enter your revenue and your ad spend.
ROAS vs. ROI — why ROAS is not your profit
A common and expensive mistake is to read ROAS as profit. It is not. ROAS measures revenue against ad spend only — it ignores the cost of the product you sold, your overheads, and your team. A 4.0x ROAS does not mean you made four times your money; if your gross margin is 25%, that same 4.0x is exactly your break-even point. ROAS tells you whether the ad channel is efficient; profit depends on your margins. The two sections below pin down the difference precisely.
How to calculate ROAS
Calculating ROAS is a three-step process. The only judgement call is what counts as 'ad spend' — the calculator uses the figure you enter, so decide up front whether you are including just the media cost or the true, fully-loaded cost of running the ads.
- Total the revenue attributed to the ads. Sum the sales the campaign drove over the period — the revenue your analytics or ad platform attributes to that source.
- Total the ad spend. Add up what you paid to run the ads. For a true picture, include creative production, agency or management fees, and ad-tool subscriptions, not just the media cost.
- Divide revenue by ad spend. The result is your ROAS. Multiply by 100 if you want it as a percentage. The calculator above does this live as you type.
A worked example using the ROAS calculator
An e-commerce store runs a Google Ads campaign for a quarter. They want to know whether it paid off. Here is how they use the calculator — revenue first, then spend, then the division, then a margin check.
Step 1 — Total the revenue from the ads
Their analytics attributes $10,000 in sales to the campaign over the quarter. That is the revenue figure they enter.
Step 2 — Total the ad spend
They paid $2,000 to Google for the clicks, plus $300 to a freelancer for the ad creative and $200 in tool subscriptions — a fully-loaded ad spend of $2,500.
| Line | Amount |
|---|---|
| Media cost (Google Ads) | $2,000 |
| Creative / freelancer | $300 |
| Ad tools & subscriptions | $200 |
| Total ad spend | $2,500 |
Step 2 result: a true, fully-loaded ad spend of $2,500.
Step 3 — Divide revenue by ad spend
Step 4 — Check it against your margin
Now see whether 4.0x is actually profitable. The store's gross profit margin is 40%, so its break-even ROAS is 1 ÷ 0.40 = 2.5x. At 4.0x the campaign comfortably clears the 2.5x it needs to cover product costs, so it is making money — not the 4× profit the raw ROAS might suggest. The next sections show what counts as a good ROAS, and how the break-even check works.
What is a good ROAS?
There is no universal 'good' ROAS — the honest answer is any ROAS that consistently clears your break-even threshold with room left for profit. That said, the most widely cited benchmark across the industry is a 4:1 ratio — $4 of revenue for every $1 of ad spend. Shopify and many marketers treat 4:1 as the default target for e-commerce; most businesses aim somewhere between 3:1 and 5:1.
What 'good' looks like also shifts with the channel and the funnel stage. High-intent search traffic converts better than top-of-funnel awareness ads, so the same business will see very different ROAS across platforms. The table below collects commonly reported benchmark ranges by channel.
Average ROAS by channel
ROAS varies widely by advertising channel, mostly because of buyer intent: someone searching for your product is closer to buying than someone scrolling a feed. The ranges below are typical reported figures, not guarantees — your own numbers depend on your offer, margins, and targeting.
| Channel | Typical ROAS range | Why |
|---|---|---|
| Email marketing | 10x–40x+ | Owned audience, near-zero media cost, high intent. |
| Google Search | 3.5x–8x | High purchase intent — people actively searching. |
| Google Shopping | 5x–8x | Product-led, shown to ready-to-buy shoppers. |
| Meta (Facebook / Instagram) | 1.8x–5x | Interruption-based; strong for discovery, lower intent. |
| TikTok | 1.5x–4x | Top-of-funnel discovery; awareness over direct response. |
| E-commerce, all channels | ~4x | The commonly cited blended average. |
Indicative ranges compiled from WordStream, Shopify, and published e-commerce benchmark studies (2025–2026). Treat as ballpark figures, not targets.
Break-even ROAS and your profit margin
Break-even ROAS is the exact ROAS at which a campaign neither makes nor loses money — the tipping point for profitability. Above it you are in profit; below it, every extra dollar of ad spend loses money once product costs are paid. It is set entirely by your gross profit margin.
This is why margin is everything. A brand with a 50% margin breaks even at just 2.0x ROAS, so a 3:1 campaign is comfortably profitable. A brand with a 25% margin needs 4.0x just to break even, so that same 3:1 campaign is losing money. Two businesses can run identical ads at identical ROAS and one prints money while the other bleeds — the difference is the margin. Enter your margin in the calculator and it returns your break-even ROAS automatically.
| Gross profit margin | Break-even ROAS | Target ROAS for profit |
|---|---|---|
| 20% | 5.0x | above 5.0x |
| 25% | 4.0x | above 4.0x |
| 33% | 3.0x | above 3.0x |
| 50% | 2.0x | above 2.0x |
| 67% | 1.5x | above 1.5x |
Break-even ROAS = 1 ÷ margin. Your campaign must clear this just to cover product costs.
ROAS vs. ROI vs. CPA — which metric to use
ROAS, ROI, and CPA answer different questions, and confusing them leads to bad budget decisions. ROAS measures revenue against ad spend only. ROI measures profit against total cost — it subtracts the cost of goods, overheads, salaries, and tools, so it tells you what the whole effort actually earned. CPA (cost per acquisition) measures the cost to win one customer, ignoring how much they spend.
Use ROAS to optimise day-to-day campaign efficiency, ROI to judge whether the channel is genuinely profitable, and CPA when the payoff comes later (subscriptions, B2B). Pair this tool with the ROI calculator and the break-even calculator for the full view.
How to improve your ROAS
ROAS moves through two levers — earn more revenue per ad dollar, or spend fewer ad dollars for the same revenue. In practice that breaks down into four concrete plays:
- Lift conversion rate. More of the same traffic turning into sales raises revenue without raising spend — landing-page speed, clearer offers, and trust signals all help.
- Tighten targeting and cut waste. Pause keywords, audiences, and placements that spend without converting; shift budget to the segments that already perform.
- Raise average order value. Bundles, upsells, and free-shipping thresholds increase revenue per customer, so each ad-driven sale returns more.
- Lower the true cost of ads. Better creative lowers cost-per-click, and trimming agency or tool overhead cuts the fully-loaded spend that sits in the denominator.
Data sources and methodology
The ROAS formula (revenue ÷ ad spend) and the break-even ROAS identity (1 ÷ gross margin) are standard, definitional marketing-finance formulas. The benchmark ranges in the channel and 'good ROAS' tables are indicative figures compiled from published 2025–2026 marketing benchmarks — primarily WordStream's Google Ads benchmark studies and Shopify's ROAS guidance — and from widely reported e-commerce averages. Reported ROAS varies enormously by industry, margin, and attribution model, so treat every benchmark as a ballpark, not a target.
WordStream — Google Ads industry benchmarks.Shopify — Return on Ad Spend: How To Calculate Your ROAS.Frequently asked questions about the free roas calculator
About this ROAS calculator
This ROAS calculator runs entirely in your browser. Every figure you enter stays on your device — nothing is sent to a server, logged, or shared. It divides your ad revenue by your ad spend for the ROAS ratio and percentage, and divides 1 by your gross margin for the break-even ROAS, updating instantly as you type.
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