What is Break-Even Calculator?

Break-Even Calculator tells you how many units you need to sell (or how much revenue you need) to cover all your costs. Useful for pricing, planning a new business, or checking if a product idea works.

The calculator divides your fixed costs by the contribution margin per unit (price minus variable cost) to get the unit volume that covers all expenses. It also returns the revenue needed at that volume and your margin percentage. If price is at or below variable cost, the math has no solution and the calculator flags the error instead of guessing.

How to use

1. Enter your fixed costs (rent, salaries, etc.) — the costs that don't change with sales volume.
2. Enter the price per unit and the variable cost per unit (materials, shipping, etc.).
3. View your break-even point in units and revenue, plus a visual chart of costs vs. revenue.

When to use

• Pricing a new product before launch — what unit volume justifies the tooling and salary investment
• Deciding whether to take on a wholesale order at a lower per-unit price
• Comparing two suppliers — which variable cost shrinks the break-even fast enough to be worth a switch

Result

Your monthly fixed costs are $5,000, you sell each product for $50, and each unit costs $20 to make. The calculator shows you need to sell 167 units ($8,350 revenue) to break even.

FAQ

What's the difference between fixed cost and variable cost?

Fixed costs (rent, payroll, software subscriptions) stay roughly constant whether you sell one unit or a thousand. Variable costs (materials, packaging, shipping, payment fees) scale linearly with each unit you ship.

Why does the result round up to whole units?

Selling 166.4 phone cases isn't a thing. The calculator rounds up so the revenue figure reflects the smallest whole-unit volume that fully covers your fixed costs.

How do I include things like marketing spend or one-off equipment?

Lump them into fixed costs for the period you're analysing. A 12-month break-even should pool an entire year of rent, salaries, ad budget, and depreciation. Short-term decisions usually use a monthly cut.

What does the margin percentage tell me that the unit count doesn't?

Two products can hit break-even at the same volume but with very different cushions. A 10% margin needs near-perfect execution; a 60% margin gives room to discount, miss forecasts, or absorb a tariff hike without going under.

Why does the tool tell me there's no break-even when I enter prices below cost?

If your price doesn't exceed the variable cost, every unit you sell loses money before fixed costs are even touched. There's no volume that catches up, so the calculator stops rather than producing a misleading number.

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