Understand what your marketing activity is really returning.
Enter your marketing spend, revenue, leads and customers to calculate your headline ROI. You can then unlock a complete performance breakdown and download your personalised ROI report.
Free to use. No calculator figures are stored or shared.
Your results
Complete the four fields to calculate your headline marketing return.
Your initial result
Complete the short form to unlock:
Full results
The calculator compares your attributed revenue with your marketing spend to produce a headline ROI percentage. It also uses your lead and customer figures to calculate return on ad spend, cost per lead, acquisition cost, conversion rate and revenue per customer.
Include the direct costs associated with the activity you are measuring. This may include advertising spend, agency fees, campaign production, software, content creation and landing page development.
Return on ad spend compares revenue directly with marketing spend. Marketing ROI deducts the original investment before calculating the percentage return.
For example, £20,000 in revenue from £5,000 of spend produces a 4x return on ad spend and a 300% marketing ROI.
There is no single benchmark that applies to every organisation. A commercially valuable return depends on profit margin, average customer value, sales cycle, delivery costs and customer lifetime value.
Compare the result with your commercial requirements and previous campaign performance.
Yes. You can calculate the return from a particular campaign, advertising platform, marketing channel or reporting period.
Yes. Charities can use it to assess income-generating activity such as fundraising campaigns, event promotion or donor acquisition.
However, campaigns focused on awareness, service uptake, volunteer recruitment or policy change may need additional non-financial measures.
The calculations are mathematically accurate based on the figures entered. The commercial accuracy depends on the quality of your attribution and whether all relevant costs and revenue have been included.
You can calculate and view your initial marketing ROI without completing the form. To access the complete metric breakdown and download your personalised PDF report, you will need to provide your contact details.
Marketing performance cannot be judged by clicks, impressions or engagement alone. These metrics can help explain what is happening, but they do not tell you whether your investment is producing a commercially valuable result.
Our Marketing ROI Calculator helps you connect marketing activity with revenue, leads and customer acquisition.
Using four simple figures, the calculator provides an initial marketing ROI percentage followed by a more detailed breakdown of the metrics influencing that return.
This gives you a clearer starting point for evaluating performance, comparing campaigns and deciding where future investment should go.
Your headline marketing ROI provides a useful overview, but it does not explain the complete picture. The full report includes six important performance metrics.
The percentage return generated after subtracting your marketing spend from the revenue attributed to it.
The amount of revenue generated for every £1 invested in marketing.
The average marketing investment required to acquire one new customer.
The average revenue generated by each customer acquired through the activity being measured.
The revenue remaining after marketing spend, before accounting for wider operational costs, overheads and delivery expenses.
The average amount spent to generate each new lead or enquiry.
The percentage of generated leads that went on to become customers.
A positive marketing ROI means the attributed revenue exceeded your marketing investment. A negative result means the measured activity generated less revenue than it cost.
However, a positive ROI does not automatically mean a campaign was profitable.
Your calculation may not include:
For a more commercially accurate assessment, your marketing ROI should be considered alongside profit margin, acquisition cost, conversion performance and longer-term customer value.
Your result is only as reliable as your data.
Marketing attribution is rarely perfect. A customer may encounter several channels before making an enquiry or purchase.
They could discover your organisation through social media, return through an organic search, read an email and eventually convert after clicking an advertisement.
To improve the reliability of your calculation:
The calculator should support informed decision-making, not replace a complete performance analysis.
A calculation tells you what happened. The real value comes from understanding why it happened and what should change next.
If your return is lower than expected, the problem may not simply be the marketing channel. Performance can also be affected by weak targeting, unclear messaging, poor landing pages, slow follow-up or low sales conversion.
If your return is strong, the next question is whether that performance can be scaled without increasing acquisition costs or reducing lead quality.
At Blake Mark Productions, we help businesses, charities and growing organisations understand their marketing performance and turn the available data into practical decisions.
Our work can include:
Book a free 30-minute marketing review with Blake Mark Productions.
We will discuss your current activity, the challenges affecting performance and the opportunities that may help you generate a stronger return from your marketing investment.
Blake Mark Productions supports SMEs, charities, and growing organisations with practical marketing strategies designed to support long-term growth.
From websites and SEO to advertising, content creation, and ongoing support, we help organisations strengthen their digital presence through clear communication, strategic thinking, and commercially focused execution.
We believe marketing should be approachable, effective, and aligned with real business objectives, not unnecessary complexity or inflated promises.
