Break-Even Analysis Explained—How to Find the Break-Even Point

Break-even point = fixed costs ÷ contribution margin (selling price minus variable cost per unit). A business selling a $12 product that costs $4.50 to make, with $6,000 in monthly fixed costs, has a $7.50 contribution margin — so it needs to sell 800 units a month to break even. Change the price, the cost, or add owner pay, and the number changes with it. Test your own numbers with the free break-even calculator.

Conducting a break-even analysis is a crucial exercise for small business owners. If you're planning on launching a business, writing a business plan, or exploring a new product, knowing your break-even point tells you whether the idea actually works financially.

A lot of founders set sales goals before they know what those sales need to cover. They say things like “we need to sell 1,000 units a month” or “if we hit $20,000 in monthly sales, we’ll be fine.” Maybe. But maybe not. The better question is: how much do you need to sell just to break even?

What is the break-even point?

The break-even point is where your total revenue equals your total costs — no profit yet, no reserves yet, just enough to cover what it takes to operate. For small business owners, it’s the amount you need to earn to cover your costs, full stop.

Why you should know your break-even point

So, why is knowing your break-even point so important? Here are a few important reasons to consider.

Minimize risk

Break-even points help you understand the viability of a product before it launches. Before you send an order to a factory or open your doors, you can already know how many units you need to sell and what expenses go into making that happen.

Identify unseen expenses

Running a break-even analysis forces you to outline every expense tied to an initiative — fixed and variable — including costs you’d otherwise miss.

Appropriately price your products/services

Because your break-even point ties price to expenses, you can test different pricing schemes and see how the required sales volume shifts. Use this to explore pricing options, not to set price in isolation — pair it with real customer research.

Prepare for funding

If you’re seeking funding for your business, this information is often expected or required by lenders and investors. It helps them gauge how viable your idea is and what funding level makes sense — and helps you figure out how much funding you actually need.

How to calculate the break-even point

You need three numbers:

• Fixed costs: Expenses that stay the same regardless of sales volume (rent, insurance, software, salaries).
• Variable costs: Expenses that change with each unit sold (materials, packaging, direct labor per item).
• Selling price: What you charge per unit.

Break-even point formula

The break-even point is calculated using your fixed costs and your contribution margin. The contribution margin is the selling price minus the variable cost per unit.

The contribution margin formula is:

Contribution Margin = Selling Price − Variable Cost Per Unit

The break-even point formula is:

Break-Even Point (Units) = Fixed Costs ÷ Contribution Margin

Break-even point example: a real granola business

Here’s a real example. A reader starting a specialty food business sells packaged granola at farmers markets, local retailers, and online. Their numbers:

• Average price per bag: $12
• Cost to make each bag: $4.50
• Monthly fixed costs: $6,000 (commercial kitchen rent, insurance, software, market fees, bookkeeping, basic marketing, part-time help)

Step 1: Contribution margin. $12 − $4.50 = $7.50 per bag (a 62.5% margin: $7.50 ÷ $12).

Step 2: Break-even point. $6,000 ÷ $7.50 = 800 bags a month.

Not 800 bags to feel successful. Not 800 bags to pay the owner well. Just 800 bags to cover the basic monthly costs. That turns a vague sales goal into a concrete question: can this business realistically sell 800 bags every month?

Testing the assumptions

This is where a break-even calculator earns its keep — you can see how sensitive the number is to each input.

Raise the price. At $14 a bag instead of $12, the contribution margin rises to $9.50. $6,000 ÷ $9.50 = about 632 bags — a meaningfully lower target. But pricing isn’t free money; the real question becomes whether customers will still buy at $14.

Raise the cost. If ingredient and packaging costs climb from $4.50 to $5.50, the contribution margin at the original $12 price drops to $6.50. $6,000 ÷ $6.50 = about 923 bags. Same product, same price, same fixed costs — a $1 swing in unit cost changes the entire sales target.

Add owner pay. Founders often leave this out. If the owner wants to pay themselves $3,000 a month, fixed costs become $9,000, not $6,000. At the original $7.50 contribution margin: $9,000 ÷ $7.50 = 1,200 bags. That’s the real break-even point if the founder actually wants to get paid — and it can completely change how the business looks on paper.

What is a standard break-even time period?

Once you know your break-even point in units, you can estimate how long it will take to hit it:

Break-Even Time Period = Break-Even Units ÷ Units Sold Per Period

If the granola business expects to sell roughly 30 bags a day across its channels, 800 ÷ 30 ≈ 27 days to break even in a given month. Keep in mind fixed costs can accumulate faster than you sell — factor that timing gap into your cash planning, not just your break-even math.

How to lower your break-even point

Your break-even point is a ratio of fixed and variable costs, so lowering it means reducing one or both. Variable costs are usually the more efficient lever since they scale with every unit — a small drop in cost per unit compounds across your whole sales volume. Fixed costs (salaries, core software, rent) are often harder to cut because they’re essential to operating at all.

What you can do with a break-even analysis

Conducting an initial break-even analysis is incredibly useful when starting a business. But, did you know that you can use it on an ongoing basis as part of your management process? Here are a few key uses you can leverage.

Determine if your prices are correct

A break-even analysis can be used to continuously audit and fine-tune your pricing strategy. If you find sales are missing expectations, you can reference this calculation to easily understand what quantities must be sold if you decide to adjust the price.

Explore current fixed and variable costs

You can also explore how different costs impact your bottom line. At the end of the day, your business needs to know what costs are impacting its ability to generate revenue. A break-even analysis can help you understand whether some products may be costing you more than they’re worth. Products with thin contribution margins or ratios might be too expensive to keep in production.

Narrow down financial scenarios

Finally, you can use your break-even analyses as part of any financial forecast scenarios that you explore. By changing numbers in your formula, you can test different types of prices and quantities based on perceived consumer interest. This can help inform a larger analysis of your sales, cash, and expenses based on how reasonable your price and volume adjustments are.

The numbers you actually need to know

You don’t need to be a finance expert. You just need to track:

• What do you sell it for?
• What does it cost you to make or deliver each sale?
• What’s your contribution margin?
• What fixed costs do you have every month?
• What does the business need to cover, including owner pay?
• How many sales does that require?

Other metrics to consider

Break-even is one piece of measuring business performance — pair it with the other key financial metrics you should be tracking. You can do this manually with spreadsheets, or explore ongoing performance with LivePlan’s performance dashboard and financial forecasting features.

Whatever option you choose, the important thing is that you are aware of these metrics and actively using them. It will help you better understand the health of your business, make more strategic decisions, and ultimately grow your business.