Calculate your Return on Ad Spend (ROAS), break-even ROAS from your gross margin, gross profit, and how much you need to spend to hit a revenue goal. Free, multi-currency, no sign-up.
Calculator
Your ROAS
4.0×
Profitable
Break-even ROAS
2.5×
Gross profit
$600.00
Spend to hit target
$2,500.00
ROAS vs Break-Even
Your ROAS4.0×
Break-even ROAS2.5×
How ROAS and break-even ROAS are calculated
ROAS (Return on Ad Spend) measures how much revenue you earn for every dollar spent on advertising. The formula is straightforward: ROAS = Ad Revenue ÷ Ad Spend. A ROAS of 4× means you earn $4 for every $1 spent. Expressed as a percentage (400%), it parallels ROI language many teams already use.
Break-even ROAS is the minimum ROAS you need to cover your product costs. It equals 1 ÷ Gross Margin. If your margin is 25%, you break even at a ROAS of 4× — meaning all revenue above cost of goods just covers ad spend. With a 50% margin your break-even ROAS is only 2×, giving you far more headroom. Gross profit = Ad Revenue × Gross Margin − Ad Spend.
The "spend to hit target" field works backwards from your revenue goal: Spend Required = Target Revenue ÷ Current ROAS. Use it to set realistic media budgets once you know your campaign's ROAS. Pair it with the break-even analysis to ensure that target spend is actually profitable at your margin.
Frequently asked questions
What is a good ROAS?
A "good" ROAS depends entirely on your gross margin. If your margin is 25%, you need at least 4× ROAS to break even — anything below is a loss. With a 50% margin, 2× breaks even and 4× is highly profitable. A common e-commerce benchmark is 4–5×, but high-margin SaaS products can be profitable at 2× while thin-margin retailers may need 8× or more.
What is break-even ROAS and why does it matter?
Break-even ROAS is the return on ad spend at which you neither make nor lose money on the campaign. Below it every sale loses money; above it every sale is profitable. It is calculated as 1 ÷ Gross Margin. Knowing your break-even lets you set a hard floor for bid strategies and budget allocation — if your ROAS dips below this number, pause or restructure the campaign.
How do I improve my ROAS?
The two levers are revenue and spend. On the revenue side: improve conversion rate, increase average order value with bundles or upsells, and sharpen your landing page to match the ad's promise. On the spend side: pause underperforming ad sets, tighten audience targeting, improve quality scores, and run creative tests to find higher-performing assets.
Is ROAS the same as ROI?
No. ROI (Return on Investment) accounts for all costs — product, fulfilment, overhead, and ad spend — and is typically measured over a longer period. ROAS only looks at ad revenue versus ad spend and ignores the cost of goods sold. A campaign can have a high ROAS but still be unprofitable if margins are thin. That's why break-even ROAS, which factors in gross margin, is the more complete metric for profitability.
Results are estimates. Verify with a professional for important decisions.
About this calculator
This calculator measures how efficiently your ad spend converts into revenue. Enter what you spent on ads, the revenue those ads generated, and your gross margin to instantly see your ROAS ratio, whether you are above or below the break-even threshold, and your actual gross profit. Use the target revenue field to find out exactly how much you need to spend to hit a revenue goal at your current efficiency.
How to read your results
The headline ROAS ratio tells you how many units of revenue you earn per unit of ad spend — a ROAS of 4 means every 1 spent on ads returned 4 in revenue. Below that, the break-even ROAS shows the minimum ratio your campaign must reach to cover product costs; anything above it is profitable, anything below is a loss. Gross profit applies your margin to the revenue and subtracts the ad spend, giving you the real dollar gain or loss from the campaign. The break-even line chart shows how the revenue needed to break even scales as your spend increases.
Worked example
Ad spend: 500. Ad revenue: 2,000. Gross margin: 40%. Target revenue: 5,000.
ROAS is 4 (2,000 ÷ 500). Break-even ROAS is 2.5 (1 ÷ 0.40). Because 4 exceeds 2.5 the campaign is profitable. Gross profit is 300 (2,000 × 0.40 − 500). To reach 5,000 in revenue at the current ROAS of 4 you need to spend 1,250.
Frequently asked questions
What is ROAS and how is it different from ROI?
ROAS (return on ad spend) is a ratio of ad revenue to ad spend: ROAS = revenue ÷ ad spend. It measures the raw revenue efficiency of a campaign. ROI (return on investment) goes further by subtracting all costs — including the cost of goods — from revenue before dividing by total investment. A high ROAS can still produce a negative ROI if product margins are thin, which is why break-even ROAS matters.
How is the break-even ROAS calculated?
Break-even ROAS = 1 ÷ gross margin (as a decimal). At a 40% gross margin the break-even ROAS is 1 ÷ 0.40 = 2.5. That means every 1 spent on ads must return at least 2.5 in revenue before ad costs for the campaign to cover the cost of goods. A lower margin raises the break-even ROAS, leaving less room for error.
Why does gross margin matter so much for paid advertising?
Gross margin determines how much of each revenue unit is left to cover ad spend. At 25% margin you keep only 0.25 per 1 of revenue, so your break-even ROAS is 4 — a demanding target. At 60% margin you keep 0.60, so break-even ROAS drops to about 1.67. Knowing your margin before setting bid targets prevents campaigns that look profitable on a revenue basis but lose money in practice.
What counts as good ROAS?
There is no universal benchmark because the right ROAS depends on your gross margin, customer lifetime value, and channel costs. A common rule of thumb for e-commerce is a ROAS of 4 or higher, but a subscription business with high lifetime value might run profitably at ROAS 1.5. Always compare your ROAS to your break-even ROAS — not to industry averages — to know whether a campaign is truly generating profit.
How do I use the target revenue field?
Enter the revenue amount you want to reach in a period. The calculator divides that target by your current ROAS to tell you the ad spend required. This is useful for media planning: if your current ROAS is 4 and you want 20,000 in revenue, you need to budget 5,000 in ad spend, assuming your efficiency stays constant. Adjust the ad spend or margin fields to explore different scenarios.
How it's calculated
ROAS is calculated as ad revenue divided by ad spend. Break-even ROAS is derived from gross margin: break-even ROAS = 1 divided by (gross margin as a decimal), following the standard formula used by digital marketing practitioners (see Improvado and Shopify references). Gross profit equals ad revenue multiplied by the gross margin percentage minus ad spend. The spend required to hit a target is computed by dividing the target revenue by the current ROAS. The break-even series plots nine evenly-spaced spend points from zero to twice the entered ad spend (minimum upper bound 1,000), with the corresponding revenue that would be needed to break even at each spend level.
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