Break-Even Calculator

The Break-Even Calculator answers the most practical question in small business: how many units do I need to sell before I stop losing money? It does the classic cost-volume-profit arithmetic in real time — fixed costs, price per unit, and variable cost per unit go in, and the break-even point in units, break-even revenue, contribution margin per unit, and contribution margin ratio come out. The contribution margin, price minus variable cost, is the engine of the whole calculation: it is what each sale contributes toward covering fixed costs, and once fixed costs are covered, every additional unit is pure operating profit at that margin. The tool rounds the break-even unit count up to the next whole unit, which is the honest way to express a threshold you can never half-cross. It also guards against nonsense inputs with clear status badges — if your price is at or below variable cost, it tells you flat out that the business cannot break even at any volume, instead of quietly printing a negative number.

1. 1

   Enter Fixed costs in US dollars — rent, salaries, and other expenses that do not change with volume.

2. 2

   Enter the Price per unit in US dollars — what the customer pays per item.

3. 3

   Enter the Variable cost per unit in US dollars — materials and labour that scale with each sale.

4. 4

   Read the four stats: Break-even (units), Break-even revenue, Contribution margin / unit, and Contribution margin ratio.

5. 5

   Check the Status badge for a plain-language verdict on whether the pricing can break even.

• Deciding whether a $50 price point for a new product covers costs before launch.
• Setting a monthly sales quota for a bakery whose rent and staff costs are fixed.
• Evaluating a supplier price increase by recalculating the new break-even volume.
• Pricing a subscription service by testing several price points against the same costs.
• Preparing an investor pitch with contribution margin ratio as a headline unit-economics metric.
• Spotting that a product priced below variable cost is destroying value at every sale.

• Classify costs honestly: rent is fixed, but a wage tied to output is variable — misclassification shifts your break-even point.
• Always check the contribution margin before the break-even count; a negative or zero margin means the exercise is over.
• Remember the tool rounds units up, so 333.3 units shows as 334 — you cannot sell a third of a unit.
• Treat break-even as a floor, not a goal: covering costs is not the same as earning an acceptable profit.
• Re-run the calculation after any price or supplier change, since both move the break-even point more than most owners expect.
• Use the CM ratio as a quick cross-product check — the higher it is, the more each sales dollar contributes to profit.

• Run the numbers for three price points — cost-plus, market, and premium — and compare the unit counts.
• If break-even units look impossible, attack fixed costs first; a 10% rent cut lowers the bar directly.
• Use the status badge as a one-glance sanity check before presenting figures to anyone.
• After each quarter, refresh the inputs with actual costs to see how the threshold moved.