A profit calculator is an online tool that instantly computes the financial performance of a business, product, or project given its revenue and costs. It removes the guesswork from pricing decisions, financial planning, and performance reviews by delivering precise numbers—gross profit, operating profit, net profit, profit margin, markup, and return on investment—all at once.
This tool supports two modes: Simple mode takes your total revenue, cost of goods sold (COGS), operating expenses, and optional tax rate to produce a full income-statement breakdown. Per-Unit mode starts from a selling price per unit, variable cost per unit, units sold, and fixed costs—ideal for product pricing, e-commerce, and manufacturing analysis. Both modes include a scenario table so you can instantly see how profit changes at different revenue or sales volumes.