Short answer: A KPI (Key Performance Indicator) is a measurable indicator that directly shows whether your business objectives are being achieved. Choose only a few, link them to revenue or conversion, and measure them consistently.
Introduction
A KPI helps you determine whether your efforts are having an impact. While metrics provide insight, a KPI is a steering indicator: it tells you whether a goal is being met and whether you need to adjust. This page explains what a KPI is, how to choose good ones, and how to use them effectively.
What is a KPI?
Definition
A KPI is a measurable indicator directly tied to a strategic goal, such as revenue growth, customer retention, or product adoption. A KPI is not just any statistic; it is a number you act upon.
KPI versus metric versus vanity metric
- KPI: a steering indicator linked to a goal and an action.
- Metric: any measurement that provides insight (e.g., pageviews).
- Vanity metric: a measurement that looks good but does not support decision‑making (e.g., likes without conversion context).
FAQ Key Performance Indicator (KPI)
A KPI is a strategic steering indicator tied to a goal; a metric is any measurement that provides insight.
Aim for 3–5 strategic KPIs per team; use additional metrics for diagnosis.
How to choose good KPIs
Practical rules
- Link KPIs to a strategic goal. Choose KPIs that directly contribute to business outcomes.
- Limit the number. Keep 3–5 strategic KPIs per team; use supporting metrics for diagnosis.
- Make them SMART.
- Assign an owner. Someone is responsible for data, interpretation, and actions.
Implementation steps
- Define the goal and determine which outcome matters.
- Document the data definition (source, calculation, update frequency).
- Set targets and review rhythm (weekly, monthly, quarterly).
- Automate dashboards and choose one source of truth.
Examples per department
Marketing
- Organic conversion → lead
- Organic revenue
- CAC (Customer Acquisition Cost)
Sales
- % of deals closed within 90 days
- Average deal value
Product**
- Activation rate within 7 days
- Churn per cohort
Measurement practice and pitfalls
Common pitfalls
- Steering on vanity metrics instead of KPIs
- Incorrect or inconsistent definitions between teams
- No owner or no review rhythm.
Tips for reliable measurement
- Automate where possible and use one source of truth.
- Document definitions and calculations.
- Test attribution models and combine incrementality research with practical attribution.
- Measure impact, not just activity: link KPI changes to revenue or customer value.
Conclusion
KPIs are essential for making strategy measurable and manageable. Choose few, choose relevant, make them SMART, and ensure data and ownership are in order. That way, KPIs become a steering instrument rather than a reporting ritual.
Sources & Further Reading
- Key Performance Indicators Establishing the Metrics that Guide Success (CA Technologies, nowadays Broadcom, via Wayback Machine)
- Managing Street-Level Bureaucrats’ Performance by Promoting Professional Behavior Through HRM (Rik van Berkel, Julia Penning de Vries and Eva Knies, Sage Journals)
- Performance Indicator (Wikipedia)
