ROAS Calculator

What is ROAS Calculator?

Measure return on ad spend from campaign revenue and ad cost.

• Evaluate ad efficiency and break-even requirements.
• Compare click cost, impression cost, and revenue return across campaigns.
• Support budget allocation, creative tests, and channel decisions.

Scope and country basis

This tool is formula-based and can be used in any country if you keep the currency and time period consistent.

The country/currency selector changes money formatting. The calculation itself depends on the business metrics, rates, and assumptions you enter.

What each input means

Revenue

Money field, formatted in the selected currency.

Ad spend

Money field, formatted in the selected currency.

Formula and interpretation

The core formula is: ROAS = Revenue / Ad spend. If a country/currency selector is available, money is formatted for that market. Policy-sensitive fields use the selected market where implemented, otherwise they remain user-entered assumptions.

Use the result for first-pass comparison, budgeting, scenario planning, and discussion prep. Before filing taxes, applying for credit, buying insurance, or investing, verify the result against local rules, contracts, and professional advice.

Key concepts

Key inputs for this tool

ROAS Calculator mainly depends on Revenue, Ad spend. Keep time period, currency, and definitions consistent before comparing outputs.

Attribution window

Ad platforms assign credit using their own windows and rules.

Funnel stage

Impressions, clicks, conversions, and revenue measure different stages.

Break-even line

Ad efficiency ultimately depends on margin, refunds, repeat purchase, and fulfillment cost.

How to read the result

• Read the core ROAS Calculator output first, then the supporting metrics and scenarios rather than cherry-picking one favorable number.
• Compare against your own baseline before judging performance.
• Read ad metrics together with margin, refunds, fees, and fulfillment.
• If upstream metrics look good but conversion is weak, inspect landing page, offer, and product fit.

How to use it

1. Enter ad spend, impressions, clicks, conversions, or revenue.
2. Review the core efficiency metric and supporting readout.
3. Change budget, CTR, conversion rate, or order value to compare scenarios.
4. Before budget changes, reconcile the result with platform attribution, refunds, margin, and delayed conversions.

Common mistakes

• Optimizing CPC or CTR while ignoring profit.
• Treating attributed revenue as cash revenue.
• Using old conversion rates after large budget changes.

Suggested workflow

1. Calculate current campaign efficiency.
2. Run scenarios for budget, CTR, conversion, or order value.
3. Use margin and cash collection before scaling spend.

Method and review boundary

This calculator runs a local estimate from the inputs and formula shown on this page. It does not retrieve live rules, rates, underwriting decisions, or quotes from banks, tax authorities, insurers, or other providers. Last reviewed: July 24, 2026.

For tax, lending, insurance, retirement, investment, or contract decisions, verify official guidance, the relevant agreement, and a formal quote for your location. Use this result to compare scenarios and prepare questions, not as financial, tax, investment, or legal advice.

Method notes and official sources

ROAS equals user-entered attributed revenue divided by user-entered ad spend. Revenue and spend must use the same campaign, currency, period, attribution settings, and conversion-value basis; revenue minus ad spend is not profit, and the page excludes product cost, fees, refunds, fulfillment, overhead, taxes, incrementality, and conversion delay.

The page calculates locally only from user-entered values. It does not connect to lenders, tax authorities, ad platforms, insurers, bank accounts, or other live data sources. Results are estimates, not an approval, offer or quote, tax or insurance determination, or financial, tax, insurance, legal, or investment advice. Currency selection changes formatting only and does not perform FX conversion.

• Google Ads: ROAS definition and formula - Google Ads
• Google Ads: Conversion values and value-per-cost reporting - Google Ads
• Google Analytics: Attribution models and reporting scope - Google Analytics

Sources checked July 27, 2026. These are government, regulatory, standards-body, or first-party product references. Laws, tax rates, loan and insurance terms, platform metrics, and official pages can change; verify the applicable authority, contract, policy, loan documents, and platform account before a formal decision.

FAQ