North star metric

A north star metric is the one measure a product or company chooses to represent the value it delivers to customers, on the premise that if this number grows, the business is succeeding in a durable, customer-centered way. Well-known examples of the pattern include a ride-hailing app's completed rides or a media platform's watch time — a metric close to the moment a customer actually gets value, not just a business output like revenue.

A good north star metric sits upstream of revenue but downstream of vague goals like "engagement": it should be measurable, move with real value delivered, and be influenced by multiple teams' work. It differs from a KPI in scope — a KPI can be any tracked target for a team or function, while a north star metric is meant to be the single unifying number the whole product organization rallies around, often broken into supporting metrics similar to how OKRs cascade goals.

The north star metric matters because it aligns teams that might otherwise optimize conflicting local metrics, and it forces an explicit definition of what "value delivered" means for the product. The common pitfall is picking a metric that is easy to move but disconnected from real value — for example, raw usage that can be inflated by notifications or dark patterns without customers actually benefiting.