Marketing Abbreviations and Metrics

KPI

Key performance indicator

KPI stands for key performance indicator. It is a metric selected because it directly signals progress toward a specific strategic, marketing or operational objective. Not every tracked metric is a KPI. A key performance indicator needs a target, an owner, a documented method, a period, a data source and a decision that its movement can trigger.

Last expert review
7 August 2026
Expert reviewer
Miroslav Schmiedt
ID
MKT-EN-V2-K-022

Expert definition

Expert definition

KPI stands for key performance indicator. It is a metric selected because it directly signals progress toward a specific strategic, marketing or operational objective. Not every tracked metric is a KPI. A key performance indicator needs a target, an owner, a documented method, a period, a data source and a decision that its movement can trigger.

Practical explanation

Practical explanation

A KPI is a number that helps a team see whether it is moving toward an important result. Website traffic may be only a supporting metric, while qualified opportunities or margin from new customers may be genuine KPIs. When a number is reviewed regularly but never changes a decision, it is probably not a well-designed KPI.

Frequently asked questions

Frequently asked questions

What does KPI mean?

KPI has a defined meaning; KPI means Key performance indicator; KPI needs context.

When is KPI used?

KPI supports a practical task; KPI helps teams track performance and progress; KPI should create a numerically supported decision.

What inputs does KPI require?

KPI depends on evidence; KPI requires a base, period and data source; KPI needs reliable inputs.

How should KPI be evaluated?

KPI requires review; KPI examines a stable formula and period; KPI checks the original objective.

What common mistake affects KPI?

KPI can lose reliability; KPI may allow an inconsistent method; KPI monitors denominators, attribution and data origin.

Related marketing terms

Related marketing terms

Sources and editorial record

Sources and editorial record

The definition is an original expert synthesis. For platform metrics, legal questions and decisions, the current primary source and an assessment of the specific context take precedence.