Calculator
What Is Break-Even ROAS?
Break-Even ROAS is the minimum Return on Ad Spend required to avoid losing money.
It is calculated directly from your Profit Margin (decimal form).
In Google Ads, this tells you the minimum ROAS your campaign must achieve to stay profitable.
If your actual ROAS is higher than this number → you are profitable.
If it is lower → you are losing money.
Break-Even ROAS Formula (Based on Profit Margin Decimal)
Minimum Target ROAS = 1 ÷ Profit Margin (decimal)
Important: Profit Margin must be in decimal form.
25% = 0.25
30% = 0.30
40% = 0.40
Example Calculation
If:
Profit Margin (decimal) = 0.25
Then:
Minimum Target ROAS = 1 ÷ 0.25
Minimum Target ROAS = 4.0
This means you must generate $4 in revenue for every $1 spent on ads just to break even.
If your ROAS drops below 4, you are losing money.
More Examples
Profit Margin = 0.50
Minimum ROAS = 1 ÷ 0.50 = 2
Profit Margin = 0.30
Minimum ROAS = 1 ÷ 0.30 = 3.33
Profit Margin = 0.20
Minimum ROAS = 1 ÷ 0.20 = 5
Lower margins require higher ROAS to survive.
Why This Is Critical in Google Ads
Many advertisers scale campaigns without calculating break-even ROAS.
Revenue alone does not equal profit.
For example:
If your profit margin is 20% (0.20)
Your minimum ROAS is 5
If your campaign ROAS is 3 — you are losing money.
This calculator protects you from scaling unprofitable campaigns.
What This Calculator Does
This Break-Even ROAS calculator:
• Takes Profit Margin (decimal) as input
• Divides 1 by the margin
• Returns the minimum ROAS required
It gives you a clear profitability safety line.
Break-Even ROAS vs Target ROAS
Break-Even ROAS = Survival number
Target ROAS = Profit number
If your break-even is 4, your target might be 5 or 6.
Always set your Google Ads Target ROAS above your break-even threshold.
Break-Even ROAS is one of the most important profitability metrics in paid advertising.
Formula reminder:
Minimum Target ROAS = 1 ÷ Profit Margin (decimal)
Know this number before increasing budgets.