Break-Even Analysis — The First Number Every Business Owner Needs
Break-even analysis answers the most fundamental business question: how much do I need to sell just to cover costs? A food truck with $3,000/month fixed costs, $4 variable cost per item, and a $10 selling price breaks even at 500 items per month (3,000 / (10−4) = 500). Every item sold above 500 generates $6 in pure profit. Below 500 and the business loses money. Knowing this number shapes every major decision: pricing, marketing spend, staffing, and whether to expand or cut costs.
Break-Even Formula and How to Use the Calculator
Break-Even Units = Fixed Costs / (Selling Price − Variable Cost Per Unit). The denominator — Selling Price minus Variable Cost — is called the Contribution Margin per Unit. It is the amount each sale contributes toward covering fixed costs before generating profit. Enter your monthly or annual fixed costs, variable cost per unit, and selling price. The calculator shows break-even quantity in units, break-even revenue in dollars, and optionally the units needed to hit a specific profit target.
Frequently Asked Questions
Break-Even Units = Fixed Costs / Contribution Margin Per Unit. Contribution Margin = Selling Price − Variable Cost. Example: $6,000 fixed costs / ($25 price − $10 variable cost) = $6,000 / $15 = 400 units to break even. Break-even revenue = 400 × $25 = $10,000.
Fixed costs do not change with sales volume: rent, salaries, insurance, loan payments, software. Variable costs change with each unit sold: raw materials, packaging, direct labor per unit, shipping. Some costs are semi-variable (utilities: a base fixed amount plus usage-based component) — split them between categories based on behavior.
Three levers: (1) Reduce fixed costs — renegotiate rent, reduce headcount, cut non-essential subscriptions. (2) Reduce variable costs per unit — find cheaper suppliers, improve production efficiency, buy in bulk. (3) Increase selling price — even a 10% price increase dramatically lowers break-even if demand holds. Each lever independently moves break-even; combining them creates significant impact.
Contribution Margin = Selling Price − Variable Cost Per Unit. It represents how much each sale contributes toward covering fixed costs. A higher contribution margin means fewer units needed to break even and more profit per unit above break-even. Businesses should prioritize selling products with the highest contribution margins when capacity is limited.
Yes. Substitute units with billable hours, client engagements, or project completions. Variable cost = cost to deliver one hour of service (contractor wages, tools, travel). Fixed cost = office, salaried staff, software. Example: consulting firm with $15,000/month fixed costs, $50 variable cost per billable hour, $150/hour rate: break-even = 15,000 / (150−50) = 150 billable hours/month.
