Break Even Calculator
Calculate the break-even point for your business — the number of units you need to sell to cover all costs. See also Margin Calculator and ROI Calculator.
How to Calculate Break-Even Point
The break-even point is where total revenue equals total costs — the point at which a business neither makes a profit nor incurs a loss. To calculate it, divide your total fixed costs by the contribution margin per unit (selling price minus variable cost per unit). Fixed costs include rent, salaries, insurance, and other expenses that don't change with production volume. Variable costs are expenses that change with each unit produced, like materials and direct labor.
Break-Even Formula
Break-Even Units = Fixed Costs / (Selling Price − Variable Cost)
Break-Even Revenue = Break-Even Units × Selling Price
Contribution Margin:
CM = Selling Price − Variable Cost per Unit
CM Ratio = CM / Selling Price × 100
Example Calculation
Fixed Costs: $50,000
Variable Cost per Unit: $30
Selling Price per Unit: $50
Contribution Margin = $50 − $30 = $20 per unit
CM Ratio = $20 / $50 = 40%
Break-Even Units = $50,000 / $20 = 2,500 units
Break-Even Revenue = 2,500 × $50 = $125,000
Break-Even Reference Table
| Fixed Costs | Variable | Price | BE Units | BE Revenue |
|---|---|---|---|---|
| $10,000 | $5 | $20 | 667 | $13,340 |
| $25,000 | $15 | $40 | 1,000 | $40,000 |
| $50,000 | $30 | $50 | 2,500 | $125,000 |
| $100,000 | $20 | $60 | 2,500 | $150,000 |
| $200,000 | $50 | $100 | 4,000 | $400,000 |
| $500,000 | $100 | $250 | 3,334 | $833,500 |
Frequently Asked Questions
What are fixed costs vs variable costs?
Fixed costs remain constant regardless of production volume — rent, insurance, salaries, equipment leases. Variable costs change with each unit produced — raw materials, packaging, shipping, sales commissions. Some costs are semi-variable (utilities, maintenance) and may need to be split between fixed and variable components.
What is contribution margin?
Contribution margin is the selling price minus the variable cost per unit. It represents how much each unit sold contributes toward covering fixed costs and generating profit. A higher contribution margin means fewer units needed to break even.
How can I lower my break-even point?
Three ways: (1) Reduce fixed costs — negotiate lower rent, reduce overhead. (2) Reduce variable costs — find cheaper suppliers, improve efficiency. (3) Increase selling price — add value, improve branding. Each approach has trade-offs to consider.
Does break-even analysis work for services?
Yes. For services, the "unit" might be an hour of service, a project, or a client. Fixed costs include office space and salaries. Variable costs include materials, subcontractor fees, or per-project expenses. The same formula applies.
What are the limitations of break-even analysis?
Break-even analysis assumes costs are strictly fixed or variable, prices remain constant, and all units produced are sold. In reality, costs can be semi-variable, prices may change with volume, and inventory can accumulate. It's a useful starting point but should be combined with other financial analysis.
Solved Examples
Example 1: Coffee shop break-even analysis
Solution:
Fixed costs (rent, utilities, salaries) = $8,000/month
Average selling price per coffee = $5.50
Variable cost per coffee (beans, cup, milk) = $1.80
Contribution margin = $5.50 - $1.80 = $3.70 per unit
Break-even units = Fixed Costs / Contribution Margin = $8,000 / $3.70 = 2,162 coffees
Answer: The shop must sell 2,162 coffees per month (about 72/day) to break even.
Example 2: SaaS startup break-even revenue
Solution:
Fixed costs = $45,000/month (team, office, tools)
Subscription price = $99/month, Variable cost per user = $12
Contribution margin = $99 - $12 = $87 per subscriber
Break-even subscribers = $45,000 / $87 = 517 subscribers
Break-even revenue = 517 × $99 = $51,183/month
Answer: Need 517 paying subscribers ($51,183/month revenue) to cover all costs.
Example 3: Manufacturing break-even with target profit
Solution:
Fixed costs = $120,000/year, Target profit = $50,000
Price per widget = $25, Variable cost = $10
Units for target profit = (Fixed + Target Profit) / Contribution Margin
Units = ($120,000 + $50,000) / ($25 - $10) = $170,000 / $15 = 11,333 units
Answer: Must sell 11,333 units to achieve $50,000 profit (break-even alone is 8,000 units).
Practice Questions
Try these on your own:
- Fixed costs = $5,000/month. You sell cupcakes at $4 each with $1.50 variable cost. How many to break even? (Answer: 2,000 cupcakes)
- A product sells at $80 with 60% contribution margin. Fixed costs are $240,000/year. Break-even units? (Answer: 5,000 units)
- Rent = $3,000, staff = $7,000, other fixed = $2,000. Price = $15, variable cost = $6. Monthly break-even? (Answer: 1,334 units)
- If fixed costs increase by 20%, how does the break-even point change? (Answer: It also increases by 20%)
- You sell at $50 with $20 variable cost. To break even at 500 units, what's the maximum fixed cost? (Answer: $15,000)
Common Mistakes to Avoid
A major mistake is misclassifying fixed vs variable costs. Rent is fixed (it doesn't change with units sold), but sales commissions are variable. Misclassification throws off the entire analysis. Another error is ignoring semi-variable costs like utilities — they have a fixed base plus a usage component. Many business owners also calculate break-even once and never update it, despite costs changing over time. A common conceptual mistake is thinking break-even is a target — it's actually the minimum viable point, and real profitability requires selling well above break-even. Finally, break-even analysis assumes a constant selling price and cost per unit, which doesn't account for volume discounts, bulk purchasing savings, or price increases needed to cover inflation.
Key Takeaways
- Break-Even Point = Fixed Costs / (Selling Price - Variable Cost Per Unit).
- The contribution margin (Price - Variable Cost) is what each unit contributes toward covering fixed costs.
- Higher fixed costs or lower margins mean more units needed to break even.
- Break-even analysis helps with pricing decisions, go/no-go project decisions, and risk assessment.
- To include a profit target: Units = (Fixed Costs + Target Profit) / Contribution Margin.
- Sensitivity analysis (testing different prices and costs) makes break-even more useful than a single number.