Free ROAS Calculator — Return on Ad Spend for Ecommerce
Enter your ad spend and revenue to calculate ROAS (return on ad spend) instantly. This free ROAS calculator works for ecommerce, Google Ads and paid social, and shows you if your campaigns are profitable plus what ROAS you need to hit your profit goals.
By Growthegy Team
Who is this for? Stores with ad spend and revenue figures who want ROAS and sanity-check against margin.
Average ecommerce conversion rate is often ~2–3% (varies widely by industry and traffic mix).
Source: IRP Commerce — Ecommerce Market Data (Jan 2026)
Key takeaways
Free ROAS Calculator — Return on Ad Spend for Ecommerce — focus on one metric or lever at a time; validate with data before scaling spend.
Pair reading with free Growthegy calculators (LTV, ROAS, break-even, pricing) to turn ideas into numbers.
Bookmark growthegy.com/tools/ and run the Business Strategy Quiz when you need a prioritised roadmap.
What is ROAS?
ROAS (return on ad spend) is revenue from ads divided by ad spend. Formula: ROAS = Revenue from ads ÷ Ad spend. A 4x ROAS means $4 revenue per $1 spent. It ignores COGS—use our ROI Calculator for profit-based ROI.
Enter your ad spend and the revenue attributed to those ads below to get your ROAS. This free ROAS calculator works as a Google Ads ROAS calculator or for Meta, TikTok, and other channels—anywhere you have spend and attributed revenue.
3x is common for paid social; profitability depends on margin. With 50%+ gross margin, 3x can work; with thin margins you may need 4x+.
ROAS in Google Ads?
Use conv. value ÷ cost at the campaign level, or add the conv. value/cost column. Same math as this calculator.
FAQ
What is ROAS?
Return on ad spend (ROAS) is revenue from ads divided by ad spend. ROAS = Revenue from ads ÷ Ad spend. A 4x ROAS means you earn $4 for every $1 spent. It does not account for profit (use ROI for that).
How do I use this ecommerce ROAS calculator?
Enter your total ad spend and the revenue attributed to those ads for the same period. The free ROAS calculator returns your ratio instantly. Use it for ecommerce, Google Ads, Meta, TikTok, or any paid channel where you have spend and attributed revenue.
What is a good ROAS for ecommerce?
Many ecommerce brands target 4x or higher for paid social. 2–3x can be profitable depending on margins. Below 1x means you lose money on that spend. Use our ROI Calculator to factor in margins.
Google Ads ROAS calculator example
Example: $5,000 spend on Google Ads and $20,000 in attributed revenue → ROAS = 20,000 ÷ 5,000 = 4 (4x). Use this free ROAS calculator the same way for Search, Shopping, or Performance Max by plugging in channel-specific spend and attributed revenue.
Is this an ecommerce ROI calculator?
ROAS measures revenue per ad dollar, not full profit. For profit-based return, use our ROI Calculator and Product Profitability Analyzer alongside this ecommerce ROAS calculator. Together they cover ecommerce ROI and ad efficiency.
What is the difference between ROAS and ROI for ecommerce?
ROAS is revenue ÷ ad spend. ROI for ecommerce ads often factors in profit after COGS and other costs. High ROAS with thin margins can still lose money—use our ROI Calculator and Product Profitability Analyzer for profit view.
Is this ROAS calculator free?
Yes. Free with no signup. For channel comparison see our Social Media ROAS Calculator and Marketing Channel ROI Comparator.
People also ask
Is the ROAS Calculator free to use?
Yes. Core Growthegy tools run in your browser with no payment for standard flows. Model scenarios without signup on most calculators, then explore growthegy.com/tools/ for related utilities when you need the next metric.
How should I use ROAS Calculator results?
Treat outputs as directional, then confirm with your analytics and finance data. Change one input at a time, note assumptions, and pair numbers with margin or payback checks from linked calculators when spend is involved.
What should I do after ROAS Calculator?
Save your baseline, pick one improvement, and retest weekly. For a broader plan, take the Business Strategy Quiz and open the customer-metrics or profitability hubs for the next metrics to watch.