Business Finance

How to Calculate Your Break-Even Point

Your break-even point is the amount you must sell before the business earns its first dollar of profit. Below it, you are paying to stay open. Above it, every additional sale contributes profit. It is the most practical target-setting number a small business has.

The Formula

Break-Even Units = Fixed Costs / (Price - Variable Cost Per Unit)

Fixed costs are the bills that arrive whether you sell anything or not: rent, insurance, software, base wages, loan payments. Variable costs change with each sale: the product, its shipping, packaging and per-sale fees. The difference between price and variable cost is called the contribution, because each sale contributes that much toward covering the fixed costs.

A Worked Example

Fixed costs are $10,000 a month. You sell at $50 with a variable cost of $30 per unit. Contribution = $20. Break-even = $10,000 / $20 = 500 units a month, which is $25,000 of revenue. Unit 501 is where profit starts. The Break-Even Calculator also translates the target into sales per day and per week, which is how it feels on the shop floor.

The Price Must Beat the Variable Cost

If the price is equal to or below the variable cost, there is no break-even point at any volume: every sale loses money or contributes nothing, and selling more makes things worse, not better. When the calculator tells you the price must exceed variable cost, believe it, and fix the price or the cost stack before chasing volume.

Using Break-Even in Real Decisions

Before a hire: add the employee's true monthly cost (see the Employee Cost Calculator) to fixed costs and watch the break-even target move. That movement is the extra sales the hire must make possible.

Before a loan: the payment joins fixed costs the same way.

Before a discount: a lower price shrinks the contribution, so the break-even volume rises. Check whether the extra sales the promotion promises can actually cover the higher target.

Break-Even Is a Moving Target

Recalculate when costs, prices or product mix change. A store drifting toward low-contribution products can grow revenue while its break-even point quietly climbs out of reach. Pair this with margin checks from the Pricing Calculator and you will always know both what a sale earns and how many sales you need.

What About Businesses With Many Products?

Real businesses sell a mix, and each product has its own contribution. The practical approach is a blended contribution: weight each product's contribution by its share of your sales, or more simply, divide your overall gross profit by overall revenue to get a contribution ratio, then divide fixed costs by that ratio to get break-even revenue instead of units. If fixed costs are $10,000 and your contribution ratio is 40 percent, break-even revenue is $25,000 a month, whatever mix of products produces it.

Watch the mix, though. If low-contribution products grow faster than the rest, the blended ratio falls and the break-even target climbs even while revenue rises. That is the mechanism behind the familiar complaint of being busier than ever and no better off.

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