ROAS Calculator — Return on Ad Spend, ROI %
Calculate revenue return on ad spend. See if your campaign breaks even after accounting for gross margin. Benchmarks: 4x for ecommerce, 3x for SaaS.
ROAS — Return on Ad Spend
ROAS (revenue ÷ spend)
5.00x
ROI %
400%
Profit / loss
$40,000
Common targets: ROAS ≥ 4x for ecom (covers COGS + fulfillment + overhead). SaaS often runs 3x because of higher gross margins. Anything under 2x means you're losing money on every paid customer once overhead is factored in.
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ROAS measures revenue, not profit
The formula is straightforward: ROAS = revenue ÷ ad spend. But this is where teams get trapped. A 4x ROAS sounds excellent until you do the math on your actual gross margin. If you spend $10,000 on ads and generate $40,000 in revenue but your cost of goods sold, fulfillment, and payment processing consume 70% of that revenue, your gross margin is 30%. Your net gain is $12,000 gross profit minus $10,000 ad spend — a $2,000 win on the full $40,000 in sales. Strip away overhead and you're breaking even or losing money. ROAS of 4x on 20% gross margin means every paid customer loses you $2 in profit.
This calculator shows revenue ROAS and profit in the same breath
Enter your revenue from ads and your ad spend. The tool outputs three numbers: ROAS (the ratio), ROI as a percentage, and profit or loss (revenue minus ad spend). That profit line is your clue to the trap — it only subtracts ad spend, not COGS or overhead. A profit of $5,000 might evaporate once you account for product cost, logistics, and salary allocation. Use the profit line as a first-pass sanity check, then apply your actual gross margin to know if the campaign is truly profitable.
Industry benchmarks assume you're thinking about margins
The conventional targets are ROAS ≥ 4x for ecommerce (covers COGS, fulfillment, and operating overhead) and ≥ 3x for SaaS (higher gross margins mean you can afford lower ROAS). Anything under 2x means you're losing money on paid customer acquisition once overhead is factored in. These benchmarks only work if you've already accounted for gross margin in your target — a 3x ROAS target assumes 30%+ net margins after COGS and delivery.
Out of scope: gross margin calculations and profitability models
This calculator does not track COGS, fulfillment costs, or overhead allocation. It shows revenue ROAS only. To know if a campaign is truly profitable, layer in your actual gross margin percentage. Also see the CAC Calculator to understand what you're actually spending to acquire each customer, and the LTV Calculator to compare lifetime value against your acquisition cost.
How to use the ROAS Calculator (Return on Ad Spend)
Takes about a minute. No signup, no download, your data stays in your browser.
- 1Open the tool. Scroll up to the ROAS Calculator (Return on Ad Spend) above — it loads instantly in your browser, no install needed.
- 2Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
- 3Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.
Frequently asked questions
Common questions about the ROAS Calculator (Return on Ad Spend).
Does a 4x ROAS mean I'm profitable?
Only if your gross margin is high enough. A 4x ROAS on $10,000 ad spend generates $40,000 in revenue. But if your gross margin is 20%, that's $8,000 gross profit — a $2,000 net win after ad spend. If gross margin is only 15%, you lose $1,000. Always cross-check ROAS against your actual COGS and operating costs to know if the campaign breaks even.
What if my ad spend is zero?
The calculator returns ROAS = 0, because the formula divides revenue by ad spend. If you spent nothing, the ratio is undefined — the math breaks. In practice, zero ad spend means no ROAS calculation is possible. This edge case is a signal to verify your inputs.
Is a 3x ROAS good for SaaS?
It depends on your gross margin and customer lifetime value. SaaS companies can typically accept lower ROAS (like 3x) because subscription revenue and high gross margins (60-80%) create strong unit economics. Ecommerce needs 4x or higher because margins are tighter (30-40%). Neither number tells you if you're profitable without knowing your actual margin and full overhead.
How do I know if a campaign is actually profitable?
Calculate true profit: (revenue × gross margin %) − ad spend. A campaign with $40,000 revenue, 30% gross margin, and $10,000 ad spend nets $2,000 profit. If gross margin is 20%, the same campaign nets −$2,000 (a loss). ROAS is just the first filter — always apply your actual margin to know the real profit.
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