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Advertising CALCULATOR

ROAS Calculator

Compare ad-attributed revenue with advertising spend. ROAS (return on ad spend) is a revenue multiple, so read it alongside product margin and fulfilment costs.

Free to useFormula explainedScenario friendly
ROAS CalculatorDecision support
INPUTSDefined
MODELVisible
OUTPUTInstant
AssumptionsCalculationResult
Quick answer

Compare ad-attributed revenue with advertising spend. ROAS (return on ad spend) is a revenue multiple, so read it alongside product margin and fulfilment costs.

Enter your inputs
RESULT
Calculated output
0

4.00x is the example result. ROAS reports revenue per unit of advertising spend. It does not subtract product costs, fulfilment or overhead and should not be called profit.

Result = (([Revenue attributed to ads]) ÷ ([Ad spend]))
Purpose

Compare ad-attributed revenue with advertising spend. ROAS (return on ad spend) is a revenue multiple, so read it alongside product margin and fulfilment costs.

Read revenue per advertising unit

A result of 4x means four in attributed revenue for each one spent on ads. The model does not subtract product, staffing or platform costs. It also does not decide which channel should receive revenue credit.

When to use this result

Compare campaigns with the same attribution window and revenue treatment. Check refunds and cancelled orders before you increase budget because a dashboard ratio looks strong.

Check before you act

Do not treat a revenue multiple as profit. Use contribution after variable costs to judge whether the campaign can cover its acquisition cost.

Example with the supplied inputs

Revenue attributed to ads: 10000; Ad spend: 2500. Result: 4.00x. The values are illustrative.

Compare one changed input

Revenue attributed to ads changes from 10000 to 11000. The result becomes 4.40x. All other inputs remain fixed.

Calculation rule

Formula

Result = (([Revenue attributed to ads]) ÷ ([Ad spend]))

Inputs and output

Example inputs and entry conventions
Input Example value Entry convention
Revenue attributed to ads 10000 Use revenue attributed to ads on the currency and period basis shown by the formula. Keep gross amounts, net amounts and unit amounts distinct; the page does not fetch a price or exchange rate.
Ad spend 2500 Use ad spend on the currency and period basis shown by the formula. Keep gross amounts, net amounts and unit amounts distinct; the page does not fetch a price or exchange rate.

Output: 4.00x is the example result. ROAS reports revenue per unit of advertising spend. It does not subtract product costs, fulfilment or overhead and should not be called profit. Use the formula to distinguish a cash amount, count, percentage or ratio.

How to use the page

STEP 01

Collect the inputs

Gather Revenue attributed to ads, Ad spend. Use one period and the units shown in the form.

STEP 02

Run the calculation

Enter the values and select the action. The calculation rule above explains how the inputs produce the result.

STEP 03

Compare a scenario

Change Revenue attributed to ads on its own, keeping the other inputs fixed. Read both results before changing another assumption.

Worked example

With the example inputs listed above, the result is 4.00x.

Change Revenue attributed to ads from 10000 to 11000 while keeping every other value fixed. The result becomes 4.40x. This comparison isolates that input; it does not forecast how other variables will respond.

Check the stated formula, units and limits before using the result in a decision.

Calculation and source notes

Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.

Content updated: October 11, 2026
FOCUSED MODELS

Work through a focused scenario.

These focused calculator and workflow pages sit under the same decision model. Use one when a specific business question needs a dedicated explanation or calculation.

FOCUSED CALCULATOR

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ROAS to Profit uses attributed revenue, ad spend, cogs (%).

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BROWSE THE CATEGORY

See every calculator in Advertising.

Use the category page when you need the wider library, including related subcategories and focused models attached to this area of work.

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