FinanceUpdated 2026-05-24

ROAS Calculator: Calculate Ad Spend Efficiency

Measure return on ad spend and revenue left after ad cost.

RevenueAd spend

Inputs

ROAS Calculator

Results update as you type.

Input status

2/2

Quick scenarios

Pick a common setup and the inputs fill in instantly.

USD
USD

Live result

ROAS

5.42

Revenue after ads

$5,300.00

Scenario compare

Save scenario A, change a few inputs, then save scenario B.

Scenario A

Not saved yet

Scenario B

Not saved yet

Quick check

Change one or two inputs to compare a second scenario before using the number.

Need more detail?

Formula, examples, and FAQ stay tucked away until you need them.

FXFormula ExplanationThe core logic behind the numbers on this page.+

Our ROAS calculator uses a straightforward arithmetic formula to calculate the revenue left after ad cost. You can edit the assumptions where rates or rules can vary, ensuring the estimate accurately reflects your scenario. The calculator provides a clear result and notes to help you understand the calculation.

USEHow to UseA short path from input to result.+
  1. Enter the requested inputs.
  2. Keep any editable rule or rate fields aligned with your situation.
  3. Review the result and notes before using the estimate.
EXExamplesReference scenarios to sanity-check your inputs.+

Adjust the defaults to match your scenario, then calculate the estimate.

FAQFAQCommon edge cases and quick clarifications.+
What is ROAS and why is it important?

ROAS measures the revenue generated by your ads compared to the cost of the ads. It's essential to track ROAS to optimize your ad spend and improve marketing efficiency.

Can I customize the calculator to fit my needs?

Yes, our ROAS calculator allows you to edit the assumptions and rates to match your specific situation, providing a more accurate estimate.

Is this calculator free to use?

Yes, our ROAS calculator is a free online tool, available for you to use as many times as needed.

What is the purpose of the notes section?

The notes section provides additional information and guidelines to ensure you understand the calculation and use the estimate responsibly.

How do I use the calculator?

Enter the requested inputs, keep any editable rule or rate fields aligned with your situation, and review the result and notes before using the estimate.

RDRelated GuidesSupporting explainers that go deeper than the calculator alone.+
MAPRelated CalculatorsNeighboring tools in the same decision flow.+