βοΈ Break-Even Calculator
The exact point where profit begins.
First profitable unit count
Estimates for planning only, not financial advice.
Break-even is the sales volume where revenue exactly covers costs and profit begins: with $60,000 in fixed costs, a $45 price, and $27 variable cost per unit, you break even at 3,334 units or $150,030 in revenue. Every unit after that contributes its $18 margin straight to profit. It is the single most useful number in pricing, product launches, and go/no-go decisions, because it turns "will this work" into a concrete sales target.
How to Use This Calculator
Enter fixed costs, price per unit, and variable cost per unit. Optionally add expected unit sales to see margin of safety and projected profit. The calculator returns break-even units, break-even revenue, contribution margin, and the safety cushion.
Enter fixed costs: rent, salaries, insurance, everything that does not change with volume. Be honest; understated fixed costs are the classic break-even error.
Enter price and variable cost per unit (materials, per-unit labor, shipping). The difference is your contribution margin.
Enter expected sales to get margin of safety and profit. Compare break-even to realistic demand: if the market cannot deliver 3,334 units, the plan needs rework. For full projections, see our profit margin calculator.
The Formulas
The logic is division of labor: fixed costs are the mountain, contribution margin is each unit's shovel of dirt. $60,000 / $18 = 3,333.33, and since fractional units do not sell, round up to 3,334. Revenue break-even follows: 3,334 x $45 = $150,030. Equivalently, the 40% contribution margin ratio gives $60,000 / 0.40 = $150,000, differing by the rounding unit's $45.
Worked Example: $60,000 Fixed, $45 Price, $27 Variable
Contribution margin: $45 - $27 = $18 per unit (40%). Break-even units: $60,000 / $18 = 3,333.33, rounded up to 3,334. Break-even revenue: 3,334 x $45 = $150,030. Check: revenue $150,030, variable costs 3,334 x $27 = $90,018, fixed $60,000, total costs $150,018, profit $12: positive, confirming 3,334 is the first profitable unit.
Expected sales of 5,000 units: profit = (5,000 - 3,334) x $18 = $29,988. Margin of safety: (5,000 - 3,334) / 5,000 = 33.3%. Sales could fall a third before losses start: a comfortable cushion that would satisfy most lenders.
Levers That Move Break-Even
| Change | New break-even | Shift |
|---|---|---|
| Price +10% to $49.50 | 2,667 units | Down 20% |
| Price -10% to $40.50 | 4,445 units | Up 33% |
| Variable cost -$3 to $24 | 2,858 units | Down 14% |
| Fixed costs -$10,000 | 2,778 units | Down 17% |
Verify: $49.50 price gives margin $22.50, $60,000/$22.50 = 2,666.67 β 2,667 β. $40.50 gives margin $13.50, $60,000/$13.50 = 4,444.44 β 4,445 β. Variable $24 gives margin $21, $60,000/$21 = 2,857.14 β 2,858 β. Fixed $50,000: $50,000/$18 = 2,777.78 β 2,778 β. Price cuts hurt disproportionately because they shrink the margin that divides the fixed mountain.
Beyond the Single Number
Real businesses complicate the model: step-fixed costs (hire a supervisor at 4,000 units) create multiple break-evens, volume discounts erode price, and learning curves cut variable costs over time. Multi-product firms need the weighted-average margin. And break-even says nothing about cash timing: profitable on paper in month 6 can still mean insolvent in month 3 if customers pay late.
Use break-even as the anchor, then layer reality: demand validation (can the market absorb 3,334 units?), cash flow timing, and competitive response to your pricing. Recompute whenever costs or prices move, because a stale break-even is a plan built on last quarter's economics. Our profit margin calculator extends the analysis to full profitability, and the markup calculator helps set the price side of the margin.
Break-Even for Service Businesses
Services break even in hours, not units. A consultant with $120,000 of fixed costs billing $200 an hour at full realization breaks even at 600 billable hours a year: about 12 hours a week. The variable cost is mostly the opportunity cost of time, which makes the contribution margin per hour the number to watch. Raise the rate 10 percent and break-even hours fall nearly 10 percent, because there is little variable cost to dilute the gain.
Capacity is the constraint that product break-even analysis misses. A restaurant has 200 seats times two turns; a consultant has 2,000 hours. If break-even needs 90 percent of capacity, there is no room for growth without expansion, and the next unit of growth needs its own break-even computed with the new fixed costs. Model step costs explicitly: the second location, the new hire, the bigger server. Every capacity step resets the mountain, and businesses die expanding past a break-even they never recomputed.
Revisit break-even whenever inputs move: a supplier price hike, a rent renewal, or a planned price change all shift the mountain or the shovel. Many businesses compute it once at launch and never again, then wonder why growth stopped producing profit. A quarterly 10-minute recompute keeps pricing, hiring, and expansion decisions anchored to current economics instead of founding-era guesses.
Estimates for planning only, not financial advice.
Frequently Asked Questions
What is the break-even point?
The sales level where total revenue equals total costs: profit is exactly zero. With $60,000 fixed costs, a $45 price, and $27 variable cost per unit, break-even is $60,000 / ($45 - $27) = 3,334 units, or $150,030 in revenue. Every unit past that earns the $18 contribution margin as profit.
What is the break-even formula?
Break-even units = fixed costs / (price - variable cost per unit). Break-even revenue = break-even units x price, or equivalently fixed costs / contribution margin ratio. Our example: $60,000 / $18 = 3,333.3, rounded up to 3,334 units since you cannot sell a third of a unit; revenue: 3,334 x $45 = $150,030.
What is contribution margin?
Price minus variable cost per unit: the amount each sale contributes toward covering fixed costs and then profit. Here $45 - $27 = $18 per unit, a 40% contribution margin ratio. Break-even is simply fixed costs divided by this margin: the number of $18 contributions needed to cover $60,000.
Why round break-even units up?
Because 3,333.33 units is a mathematical point, not a sellable quantity. At 3,333 units you are $18 short of covering fixed costs (3,333 x $18 = $59,994); the 3,334th unit pushes contribution to $60,012 and profit positive. Always round up: break-even is the first profitable unit, not the nearest.
How does break-even change with price?
Powerfully, because price flows straight to contribution margin. Raising price 10% to $49.50 lifts margin to $22.50 and drops break-even to 2,667 units, a 20% fall. Cutting price 10% to $40.50 shrinks margin to $13.50 and pushes break-even to 4,445 units, up 33%. Price moves are asymmetric: small price moves swing break-even hard.
What is margin of safety?
How far sales can fall before losses begin: (actual sales - break-even sales) / actual sales. Selling 5,000 units against a 3,334 break-even gives (5,000 - 3,334) / 5,000 = 33.3% margin of safety. It is the cushion number lenders and investors ask for, because it quantifies downside tolerance.
How do multiple products break even?
With a weighted-average contribution margin: multiply each product's margin by its sales mix share, sum them, and divide fixed costs by the average. A 60/40 mix of $18-margin and $30-margin products averages $22.80, so $60,000 fixed breaks even at 2,632 blended units. If the mix shifts toward the low-margin product, break-even rises even at constant total sales.
Break-even vs payback period?
Break-even is about operating volume: the sales rate that covers costs. Payback is about time: how long until cumulative cash flow recovers an investment. A project can break even operationally in month 3 but take 2 years to pay back its startup investment. Use break-even for pricing and volume decisions, payback for investment timing.
What are the limits of break-even analysis?
It assumes constant price, constant variable cost, and that everything produced is sold: no volume discounts, no learning-curve cost declines, no demand curve. Real businesses face falling prices at higher volumes and step-fixed costs (a new hire, a second machine) that jump the fixed line. Treat break-even as the starting model, then stress-test the assumptions.
How can I lower my break-even point?
Three levers: cut fixed costs (each $1,000 cut drops break-even by 56 units here), raise prices (each $1 of price cuts about 176 units at these margins), or reduce variable costs (each $1 saved cuts about 176 units). Price increases usually move it fastest, but only if volume holds; model the demand response before banking the gain.