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Break-Even Calculator

Last updated: April 2026

Business Costs And Sales

Costs that do not change with sales volume — rent, salaries, software subscriptions, insurance.

£

The price you charge per unit sold or per service delivered.

£

Costs that change directly with each unit sold — materials, packaging, delivery, commission.

£

How many units you currently sell per month.

How much profit you want to make per month.

£

Contribution margin

£30 per unit (60.00%)

Break-even point

334 units (£16,700)

Current monthly profit

-£1,000

Margin of safety

-34 units (-11.33%)

Units to hit target profit

500 units

Break-Even Chart

Break-even: 334 units
RevenueTotal costsLoss zoneProfit zone

What if I change my price or costs?

ScenarioBreak-even
Current334 units
Price +10%286 units
Variable cost -10%313 units
Fixed costs -10%300 units
Price -10%400 units

What is a break-even point?

The break-even point is the sales volume at which your total revenue equals your total costs, so you are neither making a profit nor a loss. Every unit sold above the break-even point contributes directly to profit. Knowing your break-even point is essential for pricing decisions, budgeting, and assessing business viability.

What is contribution margin?

Contribution margin is the selling price minus the variable cost per unit. It represents the amount each unit contributes toward covering fixed costs and generating profit. A higher contribution margin means you reach break-even faster and generate more profit per unit sold.

What is margin of safety?

Margin of safety is the difference between your current sales volume and the break-even point. It tells you how much your sales could fall before you start making a loss. A margin of safety of 30% means sales would need to fall by 30% before you reach break-even, making it a useful risk measure.

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