How to Measure the Performance of Marketing: Key Metrics and KPIs
If you can’t measure it, you can’t improve it. The marketing metrics that actually matter — CPA, ROAS, LTV, conversion rate — and how to use them to make better decisions.
Marketing without measurement is just spending. But not all metrics are equal — plenty look impressive while telling you nothing about money. Here’s how to measure what actually matters.
Vanity vs outcome metrics
Stop reporting the feel-good numbers; start tracking the ones tied to revenue.
The metric that ties it together
The ultimate test is LTV vs CPA: if a customer is worth more over their lifetime than it costs to acquire them, you have a profitable, scalable engine. Everything else is detail feeding that ratio.
Measure to decide
Metrics exist to drive decisions — which channels to scale, which to cut, where to improve conversion. Track them consistently and act. This measurement discipline underpins all performance marketing.
