Key Performance Indicators (KPIs) are specific, measurable metrics used to evaluate how effectively a creator or brand is achieving their content and growth objectives. On YouTube, common KPIs include views, watch time, engagement rate, subscribers, click-through rate (CTR), retention rate, and conversion rate. KPIs provide the framework for benchmarking performance, identifying what is and isn’t working, and making data-driven decisions in a marketing strategy. The right KPIs vary by goal — a brand awareness campaign prioritizes impressions and reach, while a monetization goal focuses on watch hours and YouTube Partner Program thresholds.