Break-Even Calculator

Break-even analysis answers one of the most fundamental questions in business: how much do I need to sell before I start making money? Every business — from a one-person freelance operation to a product company — has costs that exist before a single customer pays. Break-even analysis tells you the exact volume at which revenue equals costs, and every unit sold beyond that point becomes profit.

The break-even calculation depends on two categories of costs. Fixed costs are expenses that stay the same regardless of how much you sell — rent, software subscriptions, insurance, salaries, equipment purchases. Variable costs are expenses that scale directly with each unit produced or sold — materials, packaging, shipping, payment processing fees, contractor costs per project. The cleaner your distinction between fixed and variable costs, the more accurate your break-even analysis will be.

The contribution margin is the amount each unit contributes toward covering fixed costs, calculated as the selling price minus the variable cost per unit. If you sell a product for $50 and it costs $30 to make, each sale contributes $20 toward your fixed costs and (once those are covered) profit. Your break-even point in units is simply your total fixed costs divided by the contribution margin per unit.

The contribution margin percentage — contribution margin divided by price — tells you what fraction of each dollar of revenue flows toward covering fixed costs and generating profit. A 40% contribution margin means $0.40 of every sale dollar is available for overhead and profit. Higher is better: it means less volume is needed to cover your fixed costs base.

Break-even analysis is most useful during planning and pricing decisions. When launching a product, it tells you whether your cost structure and target price can realistically generate profit at achievable sales volumes. When evaluating a price change, it quantifies how much more or less volume you'd need. When considering additional fixed costs (new equipment, a new hire, office space), it shows you how much more you need to sell to justify the investment.

One important limitation: break-even analysis assumes all units are sold at the same price and that costs scale linearly. In practice, you may have tiered pricing, volume discounts on inputs, or step-function fixed costs. Use this tool as a baseline model and build additional scenarios for your specific situation.