Break-Even Analysis Calculator

By CalcMesh Editorial · Reviewed against primary-source formulas

Break-Even Formula

BEP (units) = Fixed Costs ÷ Contribution Margin Per Unit

BEP (revenue) = Fixed Costs ÷ Contribution Margin Ratio

Where: Contribution Margin = Selling Price – Variable Cost Per Unit

Fixed vs Variable Costs

Fixed Costs	Variable Costs
Rent / lease	Raw materials
Salaries (salaried)	Hourly labor
Insurance	Sales commissions
Loan payments	Shipping / packaging
Subscriptions	Credit card fees

Related Data

Research cost of living and labor costs by metro at BEA Regional Price Parities. See salary benchmarks for hiring decisions at BLS OEWS.

Disclaimer: Break-even analysis is a planning tool using simplified assumptions. Real business finances include taxes, financing costs, and costs that are semi-variable. Use this as a starting framework.

Break-Even Analysis for Real Businesses

SBA 2023 data shows 20% of small businesses fail within one year, 45% within five years, and 65% within ten years. The BLS Business Employment Dynamics Survey found the single strongest predictor of survival is reaching cash-flow breakeven within the first 18 months — businesses that miss this milestone are 3.2x more likely to fail than those that hit it. Break-even analysis should be the first spreadsheet every founder builds.

Fixed-cost proportions vary dramatically by industry. A typical SaaS startup runs 75-85% fixed costs (salaries, infrastructure, marketing), meaning each incremental dollar of revenue contributes heavily to profit once breakeven is reached. A restaurant runs 30-40% fixed (rent, insurance, base labor), while retail runs 20-30% — industries with low fixed-cost ratios reach breakeven faster but have compressed margins above breakeven.

The NFIB's 2023 Small Business Economic Trends report found median U.S. small business had annual revenue of $1.5 million, gross margin 38%, and operating expenses equal to 32% of revenue — leaving 6% net margin before owner compensation. To cover $200,000 in annual fixed costs at 38% contribution margin requires $526,000 in revenue. Below this breakeven, every month burns cash; above it, each incremental $10,000 in revenue drops ~$3,800 to the bottom line.

Sources: SBA Small Business Profile 2023, BLS Business Employment Dynamics, NFIB SBET

Methodology & Assumptions

This calculator implements standard formulas drawn from primary-source authorities. Values are point-in-time estimates; consult a licensed professional for high-stakes decisions. See the per-input definitions and source citations below.

How this works

Computations are deterministic and run client-side — no inputs leave your browser. Formulas are derived from standard published formulas for the calculator's domain (mortgage, taxes, energy, conversions, etc.). When the underlying agency publishes updated rates or thresholds we refresh defaults and update the page's lastmod timestamp.

Frequently Asked Questions

What is break-even analysis?

Break-even analysis determines at what sales volume your total revenues equal total costs — meaning you're making neither profit nor loss. Above break-even, every additional unit sold contributes directly to profit. It's a critical planning tool for pricing decisions, funding requirements, and viability assessment.

What is contribution margin?

Contribution margin = Revenue per unit – Variable cost per unit. It represents how much each sale contributes toward covering fixed costs and then generating profit. A positive contribution margin means each sale helps pay fixed costs. Contribution margin ratio = contribution margin ÷ selling price.

How do I reduce my break-even point?

Three strategies: (1) Increase selling price (increases contribution margin). (2) Reduce variable costs (better suppliers, efficiency improvements). (3) Reduce fixed costs (negotiate rent, eliminate unnecessary overhead). A 10% price increase typically has more impact than a 10% cost reduction.

What is margin of safety?

Margin of safety = Actual sales – Break-even sales. It measures how much sales can fall before you start losing money. Expressed as a percentage: (Actual sales – BEP) / Actual sales. A 30%+ margin of safety is considered healthy; below 15% means you're vulnerable to any sales decline.