Cost-Volume-Profit Analysis Calculator
Determine profit, contribution margin, or contribution margin ratio for any product or service. Use it when setting prices, planning production volumes, or evaluating break-even scenarios.
About this calculator
Cost-Volume-Profit (CVP) analysis reveals how changes in price, cost, and volume affect a business's profit. The core building block is the contribution margin: Contribution Margin = Selling Price per Unit − Variable Cost per Unit. This tells you how much each unit sold contributes toward covering fixed costs and generating profit. Total operating profit is then: Profit = (Units Sold × Contribution Margin) − Total Fixed Costs. The contribution margin ratio expresses that margin as a percentage of price: CM Ratio = (Contribution Margin / Selling Price) × 100. Together these three outputs let managers identify the break-even volume, evaluate pricing changes, and model the profit impact of scaling production up or down.
How to use
Suppose you sell a product for $50, variable costs are $30 per unit, fixed costs total $4,000, and you plan to sell 300 units. First, calculate the contribution margin: $50 − $30 = $20 per unit. Next, calculate profit: (300 × $20) − $4,000 = $6,000 − $4,000 = $2,000. The CM ratio is ($20 / $50) × 100 = 40%. Enter these four values, choose your desired output type, and the calculator returns all three metrics instantly, saving manual computation.
Frequently asked questions
What is the difference between contribution margin and gross profit in CVP analysis?
Contribution margin subtracts only variable costs from revenue, leaving the amount available to cover fixed costs and profit. Gross profit, by contrast, subtracts all cost of goods sold, which often includes fixed manufacturing overhead. In CVP analysis, contribution margin is preferred because it cleanly separates cost behavior, making break-even and profit projections more accurate. Using gross profit instead would distort the volume-profit relationship when fixed costs are significant.
How do I use CVP analysis to find the break-even point in units?
The break-even point is the volume at which total contribution margin exactly equals total fixed costs, so profit is zero. The formula is: Break-Even Units = Total Fixed Costs / Contribution Margin per Unit. For example, if fixed costs are $4,000 and the contribution margin is $20, break-even is 200 units. CVP analysis automates this calculation and lets you model what happens to break-even when prices or variable costs change.
When should a business use contribution margin ratio instead of contribution margin per unit?
The contribution margin ratio (CM%) is most useful when comparing products with different prices or when revenue — not unit volume — is the key planning metric. For instance, a retailer measuring store performance in dollars will use CM% to assess which product lines contribute most efficiently. It also simplifies break-even in revenue terms: Break-Even Revenue = Fixed Costs / CM Ratio. Use per-unit margin when you plan production quantities and CM ratio when you plan revenue targets.