What are variable costs vs fixed costs?

Fixed costs are expenses that remain constant regardless of sales volume (like rent, interest on loans, and salaried staff). Variable costs rise and fall in direct proportion to production and sales volume (like raw materials, packaging, shipping, and credit card swipe fees).

How can a business lower its break-even point?

A business can lower its break-even point by: 1) Increasing the selling price (widening the contribution margin), 2) Negotiating lower costs for raw materials (reducing variable costs), or 3) Trimming overhead and operating expenses (lowering total fixed costs).

What is the Contribution Margin Ratio?

The Contribution Margin Ratio represents the percentage of each sales dollar that contributes to covering fixed costs and generating profits. It is calculated as: (Unit Price - Variable Cost) / Unit Price. For example, a $12 margin on a $20 price represents a 60% Contribution Margin Ratio.

Business Tool

Break-even Calculator

Find your break-even point in units sold and sales revenue. Input your fixed overhead costs, unit selling price, and unit variable cost to understand your business feasibility threshold.

Interactive Break-even Calculator Workspace

Live Solver

Total Fixed Costs ($)

Price per Unit ($)

Variable Cost per Unit ($)

Break-Even Units200 units

Break-Even Revenue$5,000

Contribution Margin$15.00

Margin Ratio60.0%

Mathematical Formula & Variables

Equation ModelBreak-even Units = Fixed Costs / (Price per Unit - Variable Cost per Unit)

The break-even point represents the exact volume of sales where total revenues equal total expenses. Beyond this point, the company earns a profit; below it, it operates at a loss.

Variable Definitions

Symbol	Description
Fixed Costs	Overhead costs that do not vary with output volume (e.g., rent, core payroll, insurance)
Price per Unit	The average retail sales price charged per unit
Variable Cost per Unit	The cost associated directly with producing a single unit (COGS, shipping, packing)
Contribution Margin	Selling price minus variable cost (Price - Variable Cost)

How to Use the Break-even Calculator

Enter the total Fixed Costs (such as monthly office rent, software licenses, etc.).
Enter the Unit Selling Price for your primary product/service.
Enter the Variable Cost per Unit (materials, packaging, transaction fees).
Review the calculated Break-even Units and the corresponding Break-even Revenue.

Practical Example Calculation

Scenario Context: A craft candle company has monthly fixed overheads of $2,400. They sell each artisanal candle for $20. The wax, wick, jar, and shipping cost $8 per candle.

Step 1: Identify Fixed Costs = $2,400, Selling Price = $20, Variable Cost = $8.

Step 2: Calculate Contribution Margin = Price - Variable Cost = $20 - $8 = $12.

Step 3: Calculate Break-even Units = Fixed Costs / Contribution Margin = $2,400 / $12 = 200 candles.

The candle company must sell exactly 200 candles per month ($4,000 in sales revenue) to break even.

Frequently Asked Questions

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