Break-even Point Calculator — Units, Revenue & Margin of Safety | Free Tool
Break-even Point Calculator
Enter your fixed costs, variable cost per unit, and selling price — instantly find how many units you need to break even, plus contribution margin, margin of safety, and profit projections.
Free Tool · Break-even Units · Revenue · Margin of Safety · Scenario Table
Cost & Pricing Inputs
$/ period
Rent, equipment leases, salaried labor, insurance, depreciation — costs that stay the same regardless of how many units you produce.
$per unit
Raw materials, direct labor, packaging, per-unit shipping — costs that increase each time you produce one more unit.
$per unit
The price your customer pays. Use a weighted average price if you sell multiple SKUs at different price points.
Optional Inputs
#units
Enter your expected or current sales volume to see your margin of safety and profit or loss at that level.
$profit
How many units you need to sell to hit a specific profit goal — calculated separately from the break-even point.
Results
Break-even Units
—
units to break even
Break-even Revenue
—
revenue to break even
Contribution Margin
—
$ per unit
CM Ratio
—
% of selling price
Profit Zone — Your Sales Position
BEP
0——
Loss Zone
Break-even Point
Profit Zone
Your Sales Volume
Margin of Safety
Units to Hit Target Profit
Profit / Loss at Sales Volume
Detailed Summary
Cost & Contribution Summary
Total fixed costs
—
Variable cost per unit
—
Selling price per unit
—
Contribution margin per unit
—
Contribution margin ratio
—
Break-even Point
Break-even units
—
Break-even revenue
—
Profit at BEP
—
At — Units Sold
Total revenue
—
Total variable costs
—
Gross profit / loss
—
Margin of safety (units)
—
Margin of safety (%)
—
Industry Cost Structure Benchmarks
Click a benchmark to pre-fill the calculator with a typical cost structure for that industry.
Multi-Scenario Comparison Table
Compare break-even points across multiple products, pricing strategies, or cost structures side by side. Each row calculates independently.
Scenario / Product
Fixed Cost ($)
Var/Unit ($)
Price ($)
BEP Units
BEP Revenue
CM/Unit
What Is Break-even Analysis and How Does It Work?
The break-even point is the sales volume at which total revenue exactly equals total costs — no profit, no loss. The core concept is the Contribution Margin (CM): the difference between your selling price and variable cost per unit. Every unit sold contributes its CM toward covering fixed costs. Once cumulative CM equals your total fixed costs, you've broken even. Every unit sold after that generates pure profit.
1 Contribution Margin
The CM is what remains after subtracting variable costs from the selling price. A higher CM means you reach break-even faster and generate more profit per unit beyond it.
CM per Unit =
Selling Price − Variable Cost
CM Ratio =
CM per Unit ÷ Selling Price
Example:
Price = $50, Var Cost = $30
CM = $20 / unit
CM Ratio = 40%
2 Break-even Units
The minimum number of units you must sell for revenue to cover all costs. Divide total fixed costs by the contribution margin per unit.
BEP (Units) =
Fixed Costs ÷ CM per Unit
Example:
Fixed = $50,000
CM = $20 / unit
BEP = 2,500 units
You need to sell 2,500
units before earning
a single dollar of profit.
3 Break-even Revenue
Expressed in dollars rather than units. Useful when you sell multiple SKUs at different price points. Divide fixed costs by the CM Ratio.
BEP (Revenue) =
Fixed Costs ÷ CM Ratio
Example:
Fixed = $50,000
CM Ratio = 40%
BEP = $125,000 revenue
Revenue must reach
$125K before the
business turns profitable.
4 Margin of Safety
How far your actual sales sit above the break-even point. It tells you how much sales can drop before you start losing money — a critical risk gauge.
MoS (Units) =
Actual Units − BEP Units
MoS (%) =
MoS Units ÷ Actual Units
Rule of thumb:
MoS < 10% = High risk
MoS 10–25% = Moderate
MoS > 25% = Well protected
Common Break-even Mistakes to Avoid
1. Misclassifying semi-variable costs — utilities, supervisory labor, and freight often have both fixed and variable components. Split them correctly or your BEP will be off.
2. Using the wrong average price — if you sell multiple products at different prices, calculate a weighted average CM Ratio and use BEP Revenue instead of BEP Units.
3. Treating BEP as the goal — break-even means zero profit. Add your target profit to fixed costs before dividing: (Fixed Costs + Target Profit) ÷ CM = units needed to actually win.
4. Forgetting to update when costs change — material prices, wages, and rent all shift over time. A BEP calculated a year ago may be significantly understated today. Review it every quarter.
Frequently Asked Questions
Fixed costs remain constant regardless of how many units you produce or sell — rent, salaried wages, insurance, loan payments, and depreciation are classic examples. Even if you produce zero units, you still owe these costs. Variable costs change in direct proportion to production volume — raw materials, hourly direct labor, per-unit packaging, and per-shipment freight. Some costs are semi-variable: a utility bill has a base charge (fixed) plus a usage component (variable). For accurate break-even analysis, split semi-variable costs into their fixed and variable portions.
Contribution margin (CM) is the selling price minus variable cost per unit. It represents the dollar amount each sale contributes toward covering fixed costs and, once those are covered, generating profit. For manufacturers, CM is critical for special-order decisions: if a customer offers a below-list price but that price still exceeds variable cost, the order has a positive CM and helps absorb fixed overhead. A low CM ratio means you need massive volume to break even, which dramatically increases operational risk.
Margin of safety measures how much your actual sales exceed the break-even point. A margin of safety below 10% is considered high-risk — a minor sales dip will push you into the red. Between 10% and 25% is moderate and acceptable for businesses with stable, predictable demand. Above 25% provides a meaningful buffer. For capital-intensive manufacturers with high fixed costs, targeting a margin of safety of at least 20–30% is advisable, because fixed costs cannot be easily reduced in the short term if revenue falls.
Use the weighted average CM Ratio method: 1) Calculate the CM Ratio for each product. 2) Multiply each product's CM Ratio by its share of total sales (the sales mix %). 3) Sum the weighted CM Ratios to get a blended average. 4) Divide total fixed costs by the weighted average CM Ratio to get the break-even revenue. Example: Product A has a 40% CM Ratio and accounts for 60% of sales. Product B has a 25% CM Ratio and accounts for 40% of sales. Weighted CM Ratio = (40% × 0.60) + (25% × 0.40) = 34%. If fixed costs are $50,000, BEP Revenue = $50,000 ÷ 0.34 = $147,059.
