Break-Even Calculator

How to Use This Calculator

This calculator helps business owners determine their break-even point, which is the sales volume at which total revenue equals total costs. At the break-even point, you are neither making nor losing money. Every sale beyond that point generates profit.

Understanding Fixed Costs

Fixed costs are expenses that remain the same regardless of how many units you sell. These include rent, salaries for permanent staff, insurance premiums, loan payments, software subscriptions, and similar overhead expenses. Enter the total of all your fixed costs for a consistent time period, either monthly or annually. Use the same time period for your sales projections.

Common fixed costs include office or retail space rent, equipment leases, salaries and benefits for non-sales staff, business insurance, professional memberships, accounting and legal retainers, and software subscriptions.

Understanding Variable Costs

Variable costs change directly with each unit you sell. Enter the cost per unit, which includes everything required to produce or acquire one unit of your product or service. For a product business, this includes raw materials, manufacturing labor, packaging, and shipping to fulfill the order. For a service business, this might include direct labor hours, supplies consumed, and subcontractor costs per engagement.

Think about what it costs you each time you make one more sale. That per-unit amount is your variable cost.

Setting Your Selling Price

Enter the price you charge customers for one unit of your product or service. If you have multiple products with different prices, you can use a weighted average price based on your typical sales mix, or run the calculator separately for each product line.

Optional: Current or Expected Sales

If you enter your current or expected sales volume, the calculator provides additional insights. You will see your margin of safety, which shows how much your sales could drop before you start losing money. You will also see your current profit or loss at that sales level.

Optional: Profit Target

If you have a specific profit goal in mind, enter that amount. The calculator will show you exactly how many units you need to sell to achieve that profit, beyond just breaking even.

Understanding the Results

The banner displays your break-even point in two ways: the number of units you must sell and the total revenue those sales represent. Both numbers tell the same story from different angles.

Contribution Margin Explained

The contribution margin is perhaps the most important number for pricing and profitability analysis. It represents how much each unit sold contributes toward covering your fixed costs and generating profit.

Contribution Margin = Selling Price minus Variable Cost per Unit

For example, if you sell a product for $75 and it costs you $25 in variable costs, your contribution margin is $50. Each sale puts $50 toward covering your fixed costs. Once fixed costs are covered, each additional sale adds $50 directly to your profit.

The contribution margin percentage shows this as a portion of your selling price. A 66.7% contribution margin means that for every dollar of revenue, about 67 cents goes toward fixed costs and profit, while 33 cents covers variable costs.

Reading the Break-Even Chart

The visual chart shows three lines. The green revenue line starts at zero and rises as you sell more units. The red total cost line starts at your fixed costs (because you incur those costs even with zero sales) and rises more gradually. The point where these lines cross is your break-even point, marked with a dot.

The area below the intersection represents the loss zone, where costs exceed revenue. The area above represents the profit zone, where revenue exceeds costs. The orange dashed line shows your fixed costs, which form the baseline that variable costs build upon.

Margin of Safety

If you entered current sales, the margin of safety shows how protected you are from a downturn. A 33% margin of safety means your sales could drop by one-third before you start losing money. This metric helps you understand your business resilience.

Businesses with thin margins of safety are vulnerable to small changes in sales volume. Those with large margins of safety have more room to weather slow periods or invest in growth.

Profit Target Analysis

The profit target section shows what sales volume you need to reach a specific profit goal. The formula is straightforward: add your desired profit to your fixed costs, then divide by your contribution margin. This tells you how many units must sell to cover fixed costs plus generate your target profit.

Using What-If Scenarios

The scenario table shows profit or loss at various sales levels, from half your break-even point to double it. This helps you understand the sensitivity of your business model. A business with high fixed costs and high contribution margins will see dramatic swings in profitability as volume changes. A business with low fixed costs and low contribution margins will see more modest changes.

Practical Applications

Use break-even analysis when launching a new product to determine if the expected sales volume is realistic. Use it when considering a price change to see how the new break-even point compares to your current sales. Use it when evaluating fixed cost increases like moving to a larger space or hiring staff to understand the additional sales required to justify the investment.