How to measure marketing ROI
How do you know whether your marketing pays off? The answer lies in ROI, the measure that links what you invested to what you earned. This guide shows the formula, the difference between a KPI and a metric, and how attribution changes the picture.
digital marketing strategy and measurementWhat is marketing ROI
Marketing ROI is the ratio of profit to investment, expressed as a percentage. The formula is simple: profit minus cost, divided by cost, multiplied by one hundred. The problem is not the calculation, but what we count as profit and cost.
A KPI is not the same as a metric
A metric is any number you can measure, for example the number of clicks. A KPI is a metric you have declared key to a goal, for example the number of quote requests. Measuring ROI starts with separating the noise from the signal.
Attribution changes the picture
Attribution determines which channel gets the credit for a conversion. The same result can look different depending on the attribution model, so you choose the model before the campaign, not after it.
Conversion rate as the bridge to ROI
Conversion rate shows how many visitors become customers or enquiries. It is the bridge between traffic and revenue, so without it ROI remains an assumption. A data-driven approach means we set up and track these numbers from the start.
Being honest about time
Some channels deliver ROI quickly, others more slowly. SEO, for example, usually shows the first movement within three to six months, and its full effect within nine to twelve. Honest measurement takes that timeframe into account instead of expecting an instant return.
FAQ
What is the formula for ROI?
ROI is profit minus cost, divided by cost, multiplied by one hundred. The key is to define profit and cost consistently throughout the whole period.
Why does ROI differ from report to report?
Most often because of a different attribution model or measurement period. That is why we agree the model and the period in advance, so the numbers are comparable.
See the broader context
Measuring ROI is part of the broader topic of digital marketing strategy and measurement. There we explain how goals, KPIs and measurement form a single decision-making system.
Decide based on numbers
Measurability is the foundation of good decisions, and ROI is its clearest expression. Explore our guides and set up measurement before your next campaign.
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