ROAS Calculator

This free ROAS calculator works out your return on ad spend in seconds. Enter your ad revenue and ad spend to see your ROAS, and add your product cost to turn it into a net-profit and ad spend calculator. As a Google Ads ROAS calculator and marketing ROI calculator, it also estimates the revenue you need to hit a target ROAS — useful for planning Google Ads, Meta Ads and any paid campaign.

What Is ROAS (Return on Ad Spend)?

ROAS (Return on Ad Spend) is the key performance metric in digital marketing that measures how much revenue is generated for every dollar spent on advertising. It is used across Google Ads, Meta Ads (Facebook/Instagram), TikTok Ads and other ad platforms to evaluate campaign efficiency.

In short: ROAS tells you how many dollars of revenue you get for every dollar of ad spend. If ROAS is below 1x you are generating less revenue than you are spending — the campaign is running at a loss.

ROAS Formula and Example

ROAS = Ad Revenue (Conversion Value) ÷ Ad Spend

Example: you spend $15,000 on a Google Ads campaign and it generates $75,000 in sales revenue.

• ROAS = $75,000 ÷ $15,000 = 5x
• Every $1 of ad spend generated $5 in revenue.

In Google Ads this appears as the "Conv. value / cost" column; in Meta Ads as the "Purchase ROAS" metric.

ROAS Benchmarks by Rating

Low-margin e-commerce (10–15% margin) may require 6–8x ROAS to be profitable, while high-margin digital products can be profitable at 2–3x. Always interpret ROAS alongside your profit margin.

Break-Even ROAS

Break-Even ROAS = 1 ÷ Profit Margin

• 25% margin → Break-even ROAS = 4x
• 20% margin → Break-even ROAS = 5x
• 33% margin → Break-even ROAS = 3x

You must exceed this break-even point to make a profit. The lower your profit margin, the higher the ROAS you need just to cover costs — which is why two campaigns with the same ROAS can be one profitable and one loss-making, depending on the underlying margin. Use the "Include product/service cost" toggle to see net profit directly in this calculator, and set your target above the break-even figure so every dollar of ad spend genuinely contributes to profit.

ROAS vs ROI

• ROAS uses only ad spend as its cost base — "how many dollars of revenue did this ad generate per dollar spent?" Best for campaign-level optimisation.
• ROI includes all costs (product, shipping, staff, infrastructure, ads) — "how much profit did my total investment generate?" Best for overall business profitability.

High ROAS does not guarantee profitability. If product costs are high, a 3x ROAS campaign can still lose money overall. Pair this ROAS calculator with the ROI calculator for a complete picture.

How to Improve ROAS

• Improve conversion rate: More sales from the same ad spend directly raises ROAS — optimise product pages, images, copy and checkout flow.
• Raise average order value: Upselling or cross-selling means more revenue per click without extra ad spend.
• Cut underperforming keywords: Add high-cost, low-conversion keywords to a negative list and shift budget to top performers.
• Narrow the audience: Specific interests, age ranges and remarketing lists convert better at lower cost-per-click.
• A/B test creatives: Higher click-through rate usually means lower CPC and higher ROAS.

ROAS in Google Ads and Meta Ads

Every major ad platform reports ROAS, and using a dedicated Google Ads ROAS calculator alongside the platform's own dashboard keeps your numbers honest. The definition is the same everywhere — conversion value divided by ad spend — but the labels differ:

• Google Ads: shown as "Conv. value / cost". A value of 4 means 4x ROAS (a 400% style figure).
• Meta Ads (Facebook/Instagram): reported as "Purchase ROAS", based on the pixel's conversion value.
• Platform vs. real ROAS: in-platform ROAS often counts view-through and attributed conversions, so it can look higher than your true, cost-inclusive figure. Recalculate with your real revenue and product cost here to see the net result.

Because of attribution differences, treat platform ROAS as a directional signal and use this calculator — with your actual product cost — for the profit decision.

What Is a Good ROAS?

There is no universal "good" ROAS; it depends entirely on your profit margin and business model. A common rule of thumb is that a ROAS of 4x (i.e. $4 of revenue per $1 of spend) is healthy for many e-commerce businesses, but a high-margin software product can be profitable at 2x while a low-margin retailer may need 6x or more. The table below gives rough reference points:

The most reliable way to set your own target is to start from your break-even ROAS (1 ÷ profit margin) and aim above it. Enter your figures above to see where you stand. See the frequently asked questions below for more examples.