Pricing a product isn’t about picking a number that “feels right.” In 2026, successful product teams calculate pricing using cost data, customer value, market benchmarks, and continuous testing. Whether you’re launching a new product, adjusting pricing due to rising costs, or trying to improve margins, this guide breaks down exactly how to calculate your product selling price step by step — with formulas, examples, and practical guidance for SaaS, B2B, and B2C products.