How do I calculate break-even point?

Break-even units = Fixed Costs / Contribution Margin per Unit. Contribution Margin = Price per Unit − Variable Cost per Unit. Multiply break-even units by price to get break-even revenue. Our calculator does this automatically.

What is contribution margin?

Contribution margin is what each unit sale 'contributes' toward fixed costs and profit, after covering its own variable cost. CM per unit = Price − Variable Cost. CM ratio = CM / Price × 100. Higher contribution margin = fewer units needed to break even.

What's the difference between fixed and variable costs?

Fixed costs don't change with sales volume (rent, salaries, insurance, software subscriptions). Variable costs scale with each unit sold (materials, packaging, sales commissions, payment processing fees). Break-even analysis treats them differently because only variable costs scale with output.

How can I lower my break-even point?

Three ways: (1) reduce fixed costs (downsize office, cut subscriptions, reduce salaries). (2) Increase price (boosts CM directly). (3) Reduce variable costs (negotiate supplier prices, find cheaper materials, automate). Increasing CM by $1 reduces break-even units by Fixed/CM × CM_change.

What is margin of safety?

Margin of safety measures how much your sales can drop before you reach break-even. Margin of Safety = (Expected Sales − Break-Even Sales) / Expected Sales × 100. A 25% margin of safety means sales can drop 25% before you start losing money. Higher = less risk.

How do I use break-even with a profit target?

Units for target profit = (Fixed Costs + Target Profit) / Contribution Margin per Unit. Treat the target profit like an additional fixed cost. Our calculator shows both break-even AND units needed to hit a specific profit goal.

Can break-even be expressed in dollars instead of units?

Yes. Break-even Revenue = Fixed Costs / Contribution Margin Ratio. For example, $50k fixed costs and 40% CM ratio = $125k break-even revenue. This is useful for businesses selling many product types where 'units' isn't meaningful.

Is break-even analysis useful for service businesses?

Yes. For service businesses, 'units' could be billable hours, projects, customers, or subscriptions. Variable cost is incremental cost per unit (e.g., per-customer support cost). Service businesses often have very low variable costs and high fixed costs, making break-even analysis especially important.

Break Even Calculator

Break-even analysis tells you how many units (or how much revenue) you need to sell to cover all costs. Above the break-even point, you make profit; below it, you lose money. The formula is simple: Break-Even Units = Fixed Costs / (Price − Variable Cost). The denominator is the contribution margin per unit — what each sale contributes to covering fixed costs and profit. This analysis is essential for pricing decisions, business planning, and viability assessment.

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calendar_today Updated: April 2026

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storefrontCost Structure

Fixed Costs

Variable Cost/Unit

Price/Unit

Target Profit (optional)

Expected Sales (optional)

trending_upBreak-Even Analysis

Break-Even Units

2,500

Revenue: $125,000

CM per Unit

$20

CM Ratio

40%

Target Units

—

Target Revenue

—

Margin of Safety

—

Expected Profit

—

Input Values

Fixed Costs

Variable Cost per Unit

Price per Unit

tips_and_updates Tips

• Lower break-even = higher margin of safety = lower risk
• Contribution margin ratio (CM/Price) tells you % of each sale that's profit-contribution
• Reducing fixed costs lowers break-even directly
• Increasing price OR reducing variable cost increases CM and lowers break-even
• Target profit units = (Fixed + Profit) / CM per unit
• Margin of safety > 20% is generally healthy; under 10% is risky
• Use break-even analysis BEFORE launching a product or service

How to Use This Calculator

Enter fixed costs

Total costs that don't change with volume.

Enter variable cost per unit

Cost to produce/deliver each unit.

Enter price per unit

Selling price per unit.

Optional: target profit + expected sales

For target units and margin of safety.

Review BE point + CM

Break-even units, revenue, contribution margin.

The Formula

Each sale 'contributes' the contribution margin toward covering fixed costs. Once you've sold enough units to cover all fixed costs, every additional unit's contribution margin is pure profit. The break-even point is where total revenue equals total cost (zero profit). Margin of safety measures how far above break-even you're operating.

Break-Even Units = Fixed Costs / (Price per Unit − Variable Cost per Unit)

lightbulb Variables Explained

Fixed Costs Costs that don't change with volume (rent, salaries, insurance)
Price per Unit Selling price per unit
Variable Cost Cost that scales with volume (materials, packaging, commissions)
Contribution Margin Price − VC per unit (per-unit contribution to fixed costs)
CM Ratio (Price − VC) / Price × 100

tips_and_updates Pro Tips

Lower break-even = higher margin of safety = lower risk

Contribution margin ratio (CM/Price) tells you % of each sale that's profit-contribution

Reducing fixed costs lowers break-even directly

Increasing price OR reducing variable cost increases CM and lowers break-even

Target profit units = (Fixed + Profit) / CM per unit

Margin of safety > 20% is generally healthy; under 10% is risky

Use break-even analysis BEFORE launching a product or service

Frequently Asked Questions

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