Free calculator

Google Ads Roas Calculator

Free Google Ads Roas Calculator with instant browser-based results and a clear calculation breakdown.

Google Ads ROAS Calculator

Enter your ad spend and the conversion value Google Ads reported to calculate Return on Ad Spend (ROAS). Optional fields add cost per conversion, break-even ROAS, profit estimate, and target ROAS comparison.

Currency

Ad spend (total cost)

Required. Must be greater than 0.

Conversion value (revenue)

Required. Total value attributed to ads.

Conversions (count, optional)

Used for cost per conversion and average value.

Gross profit margin (%, optional)

Used for break-even ROAS and profit estimate.

Target ROAS (x, optional)

Example: 4 means 4.00x (400%).

Your ROAS

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Formula: ROAS = Conversion value ÷ Ad spend. A ROAS of 4.00x means 4 units of conversion value for each 1 unit spent (400%). Break-even ROAS = 1 ÷ gross margin; estimated profit = revenue × margin − ad spend. These figures depend on your inputs and attribution settings, and past results do not guarantee future performance.

Want to understand the calculation?

See examples, formula notes and limitations.

Read the guide