Marketing July 13, 2026 · 8 Min Read

ROAS Calculator – Guide & Formulas

Calculate Return on Ad Spend (ROAS) to measure advertising profitability. Optimize your ad budget allocation.

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Put these formulas into practice with our instant, step-by-step ROAS Calculator.

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The ROAS Calculator measures the revenue generated for every dollar spent on advertising. Return on Ad Spend is a critical metric for evaluating the profitability of your advertising campaigns and making informed budget allocation decisions.

Key Takeaway

Use the free ROAS Calculator to calculate return on ad spend (roas) to measure advertising profitability. optimize your ad budget allocation. Get instant results with step-by-step explanations.

How to Use the ROAS Calculator

  1. Enter the total revenue generated from the ad campaign.
  2. Input the total amount spent on advertising.
  3. The calculator computes your ROAS ratio.
  4. Use results to optimize ad spend allocation.

The Formula

ROAS = Revenue from Ads / Ad Spend

Variable Definitions

  • ROAS: Return on Ad Spend — revenue generated per dollar of ad spend
  • Revenue from Ads: Total revenue attributed to the advertising campaign
  • Ad Spend: Total amount spent on advertising

Calculating ROAS for a Facebook Ads campaign

A business generates $8,000 in revenue from a $2,000 Facebook Ads campaign.

  1. Step 1: Revenue from Ads = $8,000, Ad Spend = $2,000.
  2. Step 2: ROAS = $8,000 / $2,000.
  3. Step 3: ROAS = 4.0.
  4. Step 4: For every $1 spent, the business generates $4 in revenue.

Frequently Asked Questions

What is a good ROAS?

A good ROAS depends on your profit margins. Generally, a ROAS of 4:1 (400%) is considered strong for most businesses. Higher-margin products can succeed with lower ROAS, while low-margin products need higher ROAS.

How is ROAS different from ROI?

ROAS measures revenue per ad dollar, while ROI measures profit per total investment. ROAS does not account for operating costs, while ROI provides a complete profitability picture.

Should I use ROAS or ROI for ad optimization?

Use ROAS for quick campaign-level optimization and ROI for overall business profitability analysis. ROAS is easier to calculate in real-time, while ROI requires full cost accounting.