What is KPI (Key Performance Indicator)?
A KPI (key performance indicator) is a quantifiable measure used to track how well a product, team or business is performing against its goals. Good KPIs are specific, measurable at a sensible cadence and tied to outcomes rather than activity, so they inform decisions instead of merely describing effort.
Reviewed by Gensudo Team · 23 July 2026
In more depth
KPIs are the ongoing instrument panel of a product, distinct from goal-setting frameworks such as OKRs: a KPI is monitored continuously to confirm health, while an OKR targets a specific change over a period. A well-chosen KPI set is small — a handful of measures that together cover acquisition, engagement, retention and commercial performance — and every KPI has a definition precise enough that two people calculating it independently get the same number. Leading indicators (which predict future results) are generally more useful for product decisions than lagging ones (which confirm past results).
Why it matters
Products generate more data than any team can watch, and without agreed KPIs, every review meeting relitigates which numbers count. Clear KPIs give a shared, stable definition of performance, make deterioration visible early, and provide the baseline against which launches, experiments and strategy changes are judged.
A product example
A subscription analytics product might track five KPIs: trial-to-paid conversion rate, weekly active accounts, monthly churn rate, average revenue per account, and support tickets per hundred active accounts. When a redesign ships, the team judges it against movement in these measures rather than anecdote.
Documents where this shows up
OKR Framework for Heads of Product · Post-Launch Review for Product Directors · Business Case for Heads of Product
Related terms
OKR (Objectives and Key Results) · North Star Metric · Churn Rate · Retention Rate · Activation Rate