About Break-Even Calculator
Find your break-even point in seconds. Enter fixed costs, variable costs, and price per unit to see exactly how many sales you need to cover expenses.
How to use
- Enter your total monthly fixed costs — expenses that remain constant regardless of sales volume. Include rent, salaries, insurance, loan payments, software subscriptions, and any other costs you pay even with zero sales. A typical small business has $3,000-$15,000 in monthly fixed costs.
- Enter the variable cost per unit — what each sale costs you in materials, production, shipping, payment processing, and direct labor. For a product costing $12 in materials, $3 in shipping, and $0.75 in credit card fees, your variable cost is $15.75 per unit.
- Set your selling price per unit. The difference between selling price and variable cost is your contribution margin — the amount each sale contributes toward covering fixed costs. A product selling for $40 with $15.75 in variable costs has a $24.25 contribution margin.
- Review your break-even point in both units and revenue. With $8,000 in fixed costs and a $24.25 contribution margin, you need to sell 330 units ($13,200 in revenue) per month to break even. Every unit sold beyond 330 is pure profit contribution.
- Adjust prices or costs to see how changes affect break-even. A 10% price increase from $40 to $44 drops break-even from 330 to 283 units — 47 fewer sales needed. This helps you evaluate pricing strategies and cost reduction opportunities.
- Use the results to set realistic sales targets. Your break-even is the minimum viable sales level. Add your desired profit to fixed costs to find your profit target: $8,000 fixed + $5,000 desired profit = $13,000, requiring 536 units per month.
Frequently asked questions
What is a break-even point?
The break-even point is the number of units you need to sell (or revenue you need to generate) to cover all your costs — both fixed and variable. Below break-even, you lose money. Above it, you earn profit. It is calculated by dividing total fixed costs by the contribution margin per unit (selling price minus variable cost). For example, $10,000 in fixed costs divided by a $25 contribution margin equals a break-even of 400 units. Knowing your break-even point helps you set minimum sales targets, evaluate pricing changes, and decide whether a business idea is viable.
How do I calculate break-even units?
Break-even units = Fixed Costs / (Selling Price - Variable Cost per Unit). The denominator (Selling Price - Variable Cost) is called the contribution margin. Example: $6,000 monthly fixed costs, $45 selling price, $18 variable cost per unit. Contribution margin = $27. Break-even = $6,000 / $27 = 222 units per month. For the revenue break-even: multiply units by selling price: 222 x $45 = $10,000 in monthly revenue needed to cover all costs. This calculator handles both calculations and lets you experiment with different scenarios instantly.
What counts as a fixed cost vs. a variable cost?
Fixed costs remain constant regardless of how much you sell: rent, salaries, insurance, loan payments, software subscriptions, equipment leases, and professional services (accounting, legal). Variable costs change with each unit sold: raw materials, packaging, shipping, payment processing fees (typically 2.5-3%), sales commissions, and direct production labor. Some costs are semi-variable: a warehouse might be fixed up to a capacity threshold, then increase. When in doubt, ask whether the cost exists if you sell zero units (fixed) or only exists when you make a sale (variable).
Why is break-even analysis important?
Break-even analysis answers the fundamental question: is this business (or product, or project) financially viable? It helps you set minimum sales targets before launching, evaluate whether a price change will improve or hurt profitability, negotiate with suppliers by understanding the impact of cost changes, plan for growth by modeling how scale affects profitability, and secure funding by showing investors the minimum revenue needed to become profitable. Pair break-even analysis with the
Profit Margin Calculator to understand not just when you stop losing money, but how profitable you become as you scale. A business that needs to sell 10,000 units monthly to break even in a market with 5,000 potential customers is not viable — break-even reveals this before you invest.
Can I use this for service businesses?
Yes. For service businesses, treat each billable hour, project, or client as a unit. Fixed costs are the same: rent, salaries, insurance. Variable costs per unit might include subcontractor fees, materials specific to each job, travel costs, and payment processing. A consulting firm with $12,000 in monthly fixed costs charging $150/hour with $30 in variable costs per hour has a $120 contribution margin and a break-even of 100 billable hours per month. If you have 3 consultants each working 160 hours, you need 21% utilization just to break even.
How does break-even change with multiple products?
For businesses selling multiple products at different prices and margins, calculate a weighted average contribution margin based on your sales mix. If Product A ($30 margin) represents 60% of sales and Product B ($15 margin) represents 40%, your weighted margin is ($30 x 0.60) + ($15 x 0.40) = $24. Use this weighted margin to calculate break-even. The key insight: shifting your sales mix toward higher-margin products lowers your break-even point, even without changing prices or reducing costs.
What is a contribution margin ratio?
The contribution margin ratio is the contribution margin expressed as a percentage of revenue: (Selling Price - Variable Cost) / Selling Price. A product selling for $50 with $20 in variable costs has a 60% contribution margin ratio. This means 60 cents of every revenue dollar contributes to covering fixed costs and generating profit. The ratio is useful for revenue-based break-even: divide fixed costs by the contribution margin ratio. With $10,000 in fixed costs and a 60% ratio, you need $16,667 in revenue to break even.
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