What does the break-even calculator calculate?

The break-even calculator is an online tool that calculates the break-even point of a business - the minimum sales volume or turnover necessary to cover all expenses. The calculator shows how many units of product or service must be sold, or what turnover must be achieved, for the business to break even (no profit, no loss). The calculator works with fixed costs (rent, salaries, utilities) and variable costs (cost per unit), and shows margin per unit and the break-even point. This is useful for entrepreneurs planning a new business, existing businesses wanting to optimize costs, and for making informed decisions about pricing and sales planning. The calculator helps you understand the minimum requirements for profitability and plan a strategy to achieve profit.

How to use the break-even calculator?

When to use the break-even calculator

This calculator is useful for entrepreneurs and businesses who want to know how many units they need to sell or what revenue they need to achieve to cover all costs and break even.

Example:

A small café with fixed costs of 2,000 BGN/month (rent, salaries, utilities). The variable cost per coffee is 1.50 BGN, and the selling price is 4.00 BGN:

• Fixed costs: 2,000 BGN/month
• Variable cost: 1.50 BGN/coffee
• Selling price: 4.00 BGN/coffee
• Margin per unit: 4.00 - 1.50 = 2.50 BGN
• Break-even quantity: 2,000 / 2.50 = 800 coffees/month
• Break-even revenue: 800 × 4.00 = 3,200 BGN/month

This means the café must sell at least 800 coffees per month (or achieve revenue of 3,200 BGN) to cover costs. Every coffee above 800 brings a profit of 2.50 BGN.

Step by step:

1. Enter fixed costs (rent, salaries, utilities, etc.)
2. Enter the variable cost per unit of product/service
3. Enter the selling price per unit
4. Click the "Calculate" button
5. View the required number of units and revenue for the break-even point

How to read the results:

• Break-even quantity – the minimum number of units you need to sell to cover all costs
• Break-even revenue – the minimum revenue in BGN you need to achieve
• Margin per unit – the difference between the selling price and variable cost (this is the profit from each unit after the break-even point)
• Margin as percentage – the margin expressed as a percentage of the selling price

Sources and notes

The break-even calculator uses standard financial analysis principles. The break-even point is calculated as: Fixed Costs ÷ (Selling Price - Variable Cost per Unit). This analysis is essential for business planning, pricing decisions, and evaluating the viability of new projects. The calculator provides a simplified model that assumes constant prices and costs. For complex businesses with multiple products, seasonal variations, or dynamic pricing, consult with a financial advisor or accountant for more detailed analysis.

Last updated: April 3, 2026

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Common mistakes / limitations:

• Underestimating fixed costs – don't forget to include all constant costs (rent, insurance, software, subscriptions, etc.)
• Inaccurate determination of variable cost – be careful to include all costs that change with sales volume
• Ignoring seasonality – the break-even point may change according to the season, especially for restaurants and tourism
• Complex business models – for businesses with multiple products or services with different margins, break-even analysis can be more complex

This text is for informational purposes only and is not individual financial or tax advice.