Google Ads Breakeven ROAS Calculator

Most Google Ads accounts optimize toward a ROAS target without ever confirming what the minimum profitable ROAS actually is. This calculator gives you that floor. Start every campaign decision from a number, not a guess.

Your Numbers

Average Order Value (AOV) Revenue per sale or booking, before any costs

Gross Margin % What’s left after direct costs — goods, fulfilment, commissions, supplier fees

Current ROAS optional Your actual ROAS today — see instantly if you’re above or below breakeven

Results

Enter your AOV and Gross Margin, then hit Calculate to see your breakeven.

Breakeven ROAS

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Max CPA

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Margin Scenarios — How Gross Margin Shifts Your Breakeven

Gross Margin	Breakeven ROAS	Target ROAS (+20% buffer)	Max CPA (at your AOV)

How to Use This Calculator

Enter your Average Order Value (AOV) or the revenue per transaction before any costs. Then enter your Gross Margin %, which is what remains after direct costs such as goods, fulfilment, supplier fees, or subcontractor commissions.

If you’re running live campaigns, add your Current ROAS to see instantly whether you’re above or below the breakeven line.

What the Results Mean

Your Breakeven ROAS is the minimum return you must generate for every dollar of ad spend to avoid a loss. Below it, every click costs you money.

Your Max CPA is the highest cost-per-acquisition you can afford at that margin. This is useful if you’re running Target CPA campaigns or want to set a bid cap.

The Target ROAS in the scenario table adds a 20% buffer above breakeven, giving you a realistic campaign target that leaves room for actual profit.

Reading the Scenario Table

The table runs eight fixed margin scenarios from 20% to 90%, covering physical products, services, travel, and digital goods. Your margin is highlighted. Use it to understand how sensitive your profitability is to margin changes. A 10-point drop in margin can shift your required ROAS significantly.

When This Calculator Is Most Useful

Before launching a new campaign. You have a target ROAS in mind but have never validated it against your actual margin. Run the numbers before you set a single bid.
When a campaign is underperforming. The calculator tells you exactly where the line is, so you can decide whether to pause, adjust bids, or renegotiate costs.
When selling across different product categories. A 35% margin product and a 70% margin product need very different ROAS targets. Running them under the same campaign goal means one is subsidising the other.
For service businesses and travel agencies. Gross margin for services isn’t just COGS. It includes supplier commissions, subcontractor fees, and booking platform costs. This calculator handles any business model where margin can be expressed as a percentage of revenue.

FAQs

What is breakeven ROAS?

Breakeven ROAS is the minimum return on ad spend required to cover all direct costs and avoid a net loss on advertising. It is calculated by dividing your revenue per order by the gross profit available per order. A business with a 50% gross margin has a breakeven ROAS of 2.0×, meaning every dollar spent on ads must generate at least two dollars in revenue.

How is breakeven ROAS different from target ROAS?

Breakeven ROAS is the floor or the point at which you neither make nor lose money on ad spend. Target ROAS is what you should actually aim for, set above breakeven to ensure campaigns generate real profit. A common starting point is to set your target ROAS at 20% above breakeven.

What gross margin should I enter for a service business?

Use your contribution margin — revenue minus all variable costs directly tied to delivering the service. For a travel agency, this means subtracting supplier costs, booking fees, and commissions. For a SaaS product, it may be close to 80–90%. The calculator works for any business type as long as you express your direct costs as a percentage of revenue.

What is Max CPA and how do I use it?

Max CPA is the highest cost you can pay to acquire one customer and still break even. If your AOV is $200 and your gross margin is 40%, your Max CPA is $80. Use this as your bid cap in Target CPA campaigns or as a reference when evaluating lead generation costs.

Does a higher ROAS always mean a more profitable campaign?

Not necessarily. A high ROAS achieved on a very low ad spend may indicate an overly restrictive budget or bidding strategy that is limiting reach. Breakeven ROAS sets the profitability threshold — anything above it is profitable, and the goal is to scale spend while staying above that floor, not to maximise ROAS as a metric in isolation.