Definition
ROI per hour is the practice of measuring an activity by the value it returns for every hour you spend on it. Instead of asking only what something costs, you ask what each hour of effort produces — in money, learning, relationships, or future optionality.
The frame treats time as the scarcest resource. Money can be earned back; an hour spent cannot. Ranking work by return per hour reveals where attention is being wasted on low-yield tasks.
Why it matters
How it works
You audit how hours are actually spent, estimate the return of each category, and then rebalance toward the top performers. A task worth a few units of value per hour is a candidate to drop, automate, or hand off; a task worth many is one to protect and expand.
The estimate need not be precise. Even a rough sort into high, medium, and low return is enough to surface obvious misallocations and shift effort toward leverage.