ROAS Calculator UK — Return on Ad Spend | UK Creative Ventures
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ROAS Calculator - Return on Ad Spend
Calculate your ROAS instantly, find your break-even ROAS based on profit margin, and compare performance across Google, Meta, TikTok and LinkedIn, all in one free tool.
ROAS + break-evenMulti-channel compareFree, no sign-up
Free marketing calculator · Works for Google Ads, Meta, TikTok, LinkedIn and any paid channel
UK Creative Ventures · ROAS Calculator
£
Total amount spent on ads in the period
£
Total revenue attributed to these ads
%
Revenue minus cost of goods ÷ revenue
%
The profit % you want to achieve after ad spend
ROAS performance4.00×
0×1× (break-even)2×3×4×+
Your ROAS
4.00×
Break-even ROAS
2.50×
ROAS headroom
+1.50×
Find the minimum ROAS you need to cover your ad spend and hit your target profit. Use this as your floor when setting bids and budget targets in Google Ads or Meta.
%
e.g. sell for £100, costs £60 → margin 40%
%
0% = pure break-even, 15% = 15p profit per £1 revenue
£
Break-even ROAS
2.50×
Target ROAS (with profit)
4.00×
Revenue needed
£20,000
💡Use your break-even ROAS as a bidding floor in Google Ads (target ROAS bidding strategy). Any campaign consistently below this number is losing money and should be paused or restructured before scaling spend.
Enter your spend and revenue for each ad channel to compare ROAS side by side and identify your highest and lowest performing platforms.
What is ROAS and why does it matter?
ROAS stands for Return on Ad Spend. It is the most fundamental paid advertising metric, the revenue generated for every pound spent on ads. A ROAS of 4× means you generate £4 of revenue for every £1 you spend on advertising.
ROAS is the starting point for all paid media decisions: whether to scale a campaign, cut budget, restructure ad groups, or kill a channel entirely. Without knowing your ROAS and crucially, your break-even ROAS, you cannot know whether your advertising is profitable.
How to calculate ROAS
The ROAS formula is straightforward:
ROAS = Revenue ÷ Ad Spend
Worked example: calculating ROAS You spend £3,000 on Google Ads in a month and generate £12,000 in tracked revenue. ROAS = £12,000 ÷ £3,000 = 4.00× This means you earn £4 for every £1 spent on ads.
What is a good ROAS?
There is no universal "good" ROAS, it depends entirely on your gross margin. A 3× ROAS might be highly profitable for a software business with 80% margins, but loss-making for a physical goods retailer with 25% margins. The only meaningful benchmark is your break-even ROAS.
Gross margin
Break-even ROAS
Typical target ROAS (20% profit)
20%
5.00×
8.33×
30%
3.33×
5.00×
40%
2.50×
3.57×
50%
2.00×
2.86×
60%
1.67×
2.22×
70%
1.43×
1.82×
Break-even ROAS - the most important number in paid media
Your break-even ROAS is the ROAS at which your ad spend exactly covers the cost of goods sold — leaving zero profit. Any ROAS above break-even is profitable; below it, you are losing money on every sale driven by ads.
The break-even ROAS formula is:
Break-even ROAS = 1 ÷ Gross Margin
Worked example: break-even ROAS Your product sells for £100. The cost of goods is £60. Gross margin = 40%. Break-even ROAS = 1 ÷ 0.40 = 2.50× You need at least £2.50 of revenue for every £1 of ad spend to avoid losing money.
To achieve a 20% net profit margin after ad spend: Target ROAS = 1 ÷ (0.40 − 0.20) = 1 ÷ 0.20 = 5.00×
ROAS vs ROI: what is the difference?
ROAS measures revenue relative to ad spend. ROI (Return on Investment) measures profit relative to total investment. They are related but different:
ROAS = Revenue ÷ Ad Spend (a revenue multiple)
ROI = (Revenue − Total Cost) ÷ Total Cost × 100 (a profit percentage)
ROAS is the preferred metric in paid media because it is simpler to calculate in real-time from ad platform data. ROI requires knowing the full cost of goods and overheads, which is harder to calculate at the campaign level. However, ROAS alone can be misleading a campaign with a high ROAS on low-margin products may generate less actual profit than one with a lower ROAS on high-margin products.
Platform ROAS benchmarks
Platform
Average ROAS benchmark
Notes
Google Search Ads
2×-8×
High intent; typically strongest ROAS for e-commerce
Google Shopping
3×-10×
Product-specific; strong for retail
Meta (Facebook/Instagram)
2×-6×
Discovery-led; higher for retargeting
TikTok Ads
1.5×-4×
Lower average but strong for younger audiences
LinkedIn Ads
1×-3×
High CPC but strong B2B lead quality
Display / Programmatic
1×-3×
Brand awareness; rarely direct-response focused
These are broad industry averages. Your actual ROAS will depend on your niche, product price point, landing page quality, audience targeting and campaign structure. Use these as directional benchmarks, not hard targets.
Frequently asked questions about ROAS
ROAS stands for Return on Ad Spend. It measures how much revenue you generate for every pound spent on advertising. A ROAS of 4× means you earn £4 in revenue for every £1 of ad spend. ROAS is the primary efficiency metric for paid advertising campaigns across Google, Meta, TikTok, LinkedIn and other platforms.
A good ROAS for Google Ads depends on your gross margin. The industry average across Google Ads is typically 2×-4×, with e-commerce Shopping campaigns often achieving 4×-8×. However, "good" is relative, a 3× ROAS is excellent for a high-margin software product and poor for a low-margin retailer. Calculate your break-even ROAS first using the tool above, then set your target ROAS above that.
Break-even ROAS = 1 ÷ Gross Margin. If your gross margin is 40%, your break-even ROAS is 1 ÷ 0.40 = 2.50×. This means you need to generate at least £2.50 of revenue for every £1 of ad spend to cover the cost of goods sold. To include a profit target, use: Target ROAS = 1 ÷ (Gross Margin − Target Profit Margin).
ROAS (Return on Ad Spend) measures revenue generated per pound of ad spend, it is a revenue multiple. ROI (Return on Investment) measures profit generated relative to the total cost invested, it is a profit percentage. ROAS is simpler to calculate from ad platform data but does not account for cost of goods. ROI gives a more complete profitability picture but requires knowing all costs. Both metrics are useful; use ROAS for campaign-level optimisation and ROI for overall business profitability assessment.
A high ROAS does not guarantee profitability if your gross margin is low. For example, a 3× ROAS sounds strong, but if your gross margin is only 25%, your break-even ROAS is 4× meaning a 3× ROAS is actually losing money. Additionally, ROAS only accounts for ad spend, not other business costs (fulfilment, returns, overhead, staff). Always compare your ROAS against your break-even ROAS, not against generic industry benchmarks.
The main levers to improve ROAS are: improving your conversion rate (better landing pages, stronger offers, faster load times); reducing wasted spend (negative keywords, audience exclusions, poor-performing ad groups); improving ad quality and relevance (higher CTR → lower CPC); increasing average order value (upsells, bundles, minimum order thresholds); and refining your targeting to reach higher-intent audiences. Improving gross margin through supplier negotiations or pricing also raises your break-even threshold.
Set your target ROAS in Google Ads above your break-even ROAS by your desired profit margin. For example, if your break-even ROAS is 2.5× and you want a 20% net margin after ad spend, calculate: Target ROAS = 1 ÷ (Gross Margin − Target Margin) = 1 ÷ (0.40 - 0.20) = 5×. Use this as your tROAS bid strategy target in Google Ads. Start 10–20% above break-even to give the algorithm room to optimise without immediately going unprofitable.
The ROAS formula is the same across all channels, but the typical ROAS benchmarks vary significantly. Google Search and Shopping tend to produce higher ROAS because of the high purchase intent of search queries. Meta and TikTok are discovery-led and typically show lower direct ROAS, though they play an important role in top-of-funnel awareness that contributes to conversions on other channels. LinkedIn typically has a lower ROAS due to high CPCs, but the lead quality for B2B businesses can justify it.
Attribution significantly affects reported ROAS. Last-click attribution credits all revenue to the final touchpoint before conversion, which tends to favour search and retargeting campaigns. Data-driven attribution distributes credit across all touchpoints in the conversion path. First-click attribution favours awareness channels. Using different attribution models will give you different ROAS figures for the same campaigns, which is why ROAS comparisons across channels should always specify the attribution model being used.
Blended ROAS (also called total ROAS or MER - Marketing Efficiency Ratio) is total revenue divided by total ad spend across all channels combined. It is a more reliable overall profitability metric than individual channel ROAS because it is not distorted by attribution model differences between platforms. Many sophisticated e-commerce brands track blended ROAS as their primary north-star metric alongside platform-reported ROAS figures.
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