What Is Product-Market Fit? 12 Metrics to Measure It

Product-market fit (PMF) is when a product effectively meets the needs of a specific market, driving user loyalty, growth, and investor interest. The article outlines 12 metrics to measure PMF—including retention, NPS, and CLV—and describes four stages from feature-problem fit to solution-market fit. It highlights the Sean Ellis 40% rule as a key benchmark and references Web3 examples like Uniswap, Ethereum, and Worldcoin.