You are about to launch a product, hire an employee, sign a lease, or raise your prices. Before you do any of those things, you need one number: how many sales does it take to cover all your costs?
That number is your break-even point — and calculating it takes less than 60 seconds once you know three inputs: your fixed costs, your selling price, and your variable cost per unit. The formula is not complicated. But using the wrong method for your business type, or plugging in the wrong numbers, produces an answer that could cost you thousands.
This guide walks you through exactly how to calculate your break-even point using both methods — in units and in revenue — with four complete examples covering a product business, a restaurant, a freelancer, and a subscription company. Each example follows the same three-step process so you can replicate it for your own business immediately.
We also built a free break-even calculator that does the math instantly, generates a visual chart, and includes a pricing sensitivity table showing how your break-even shifts at different price points.
The Break-Even Point Formula (Both Methods)
There are two formulas. They produce the same result expressed in different units. Use whichever makes more sense for your business.
Method 1 — Break-Even in Units (how many items to sell)
Break-Even Point = Fixed Costs ÷ Contribution Margin Per Unit
Where Contribution Margin Per Unit = Selling Price − Variable Cost Per Unit
Method 2 — Break-Even in Revenue (how much money to generate)
Break-Even Revenue = Fixed Costs ÷ Contribution Margin Ratio
Where Contribution Margin Ratio = (Selling Price − Variable Cost) ÷ Selling Price
Both formulas use the same three inputs. The only difference is the output: units vs. dollars. Method 1 is best for businesses that sell countable products at a consistent price. Method 2 is best for service businesses, multi-product businesses, or any situation where “how many units” does not apply cleanly.
The term you need to understand: Contribution Margin. This is the amount each sale “contributes” toward paying off your fixed costs. A $30 product with $12 in variable costs has an $18 contribution margin. That $18 does not become profit — it first goes toward covering rent, salaries, insurance, and all other fixed overhead. Only after total contribution margin equals total fixed costs does profit begin.
Step-by-Step: How to Calculate Break-Even Point
The process is identical for every business. Three steps. Five minutes.
Step 1: Total your monthly fixed costs.
List every expense you pay regardless of sales volume. Rent, insurance, salaried employees, loan payments, software subscriptions, equipment leases, and your own salary (if you plan to pay yourself — and you should). Add them up for a single month.
If you are unsure whether an expense is fixed or variable, apply this test: “If I sell one more unit, does this cost increase?” If no, it is fixed. For a detailed guide, see our article on fixed costs vs variable costs.
Step 2: Calculate your variable cost per unit.
Add up every cost that increases each time you sell one more unit. Raw materials, shipping per order, packaging, payment processing fees, sales commissions, and direct production labor. Divide total variable costs by total units sold in a typical month to get the per-unit figure.
Step 3: Plug into the formula.
Break-Even Units = Fixed Costs ÷ (Selling Price − Variable Cost Per Unit)
That is it. The result tells you exactly how many sales you need to cover all costs. Anything beyond that number is profit.
Example 1: Product Business (Handmade Soap Company)
Sarah runs a handmade soap business from a rented studio.
| Input | Amount |
|---|---|
| Monthly rent | $1,200 |
| Insurance | $150 |
| Website + Shopify subscription | $80 |
| Her salary | $3,000 |
| Accounting software | $50 |
| Total Monthly Fixed Costs | $4,480 |
| Variable Cost Per Bar | Amount |
|---|---|
| Oils, lye, fragrance, colorants | $1.80 |
| Mold liner and packaging | $0.60 |
| Label printing | $0.15 |
| Shipping per order (average) | $2.40 |
| Payment processing (avg on $12 sale) | $0.65 |
| Total Variable Cost Per Bar | $5.60 |
Selling price: $12.00 per bar
Contribution Margin = $12.00 − $5.60 = $6.40 per bar
Break-Even Point = $4,480 ÷ $6.40 = 700 bars per month
Sarah needs to sell 700 bars of soap each month to cover all costs. That is roughly 23 bars per day if she sells every day of the month, or about 175 bars per week.
Break-Even Revenue = 700 × $12 = $8,400 per month
What this means in practice: If Sarah sold 600 bars last month, she lost money — specifically, she fell 100 bars short, meaning she lost $640 ($6.40 × 100). If she sold 800 bars, she exceeded break-even by 100 bars and earned $640 in profit.
Example 2: Restaurant (Fast-Casual Taco Shop)
Marco owns a small taco shop with 30 seats.
| Monthly Fixed Costs | Amount |
|---|---|
| Lease | $4,200 |
| Salaried manager | $3,800 |
| Insurance | $350 |
| POS system + software | $200 |
| Loan payment | $600 |
| Utilities (base) | $450 |
| Marco’s salary | $4,000 |
| Total Fixed Costs | $13,600 |
For a restaurant, the “unit” is typically one customer transaction (average check).
| Variable Cost Per Customer | Amount |
|---|---|
| Food cost (avg per transaction) | $3.50 |
| Disposable supplies (containers, napkins) | $0.35 |
| Hourly labor (proportional per customer) | $1.80 |
| Credit card processing fee | $0.30 |
| Total Variable Cost Per Customer | $5.95 |
Average transaction (check size): $14.50
Contribution Margin = $14.50 − $5.95 = $8.55 per customer
Break-Even Point = $13,600 ÷ $8.55 = 1,591 customers per month
That is roughly 53 customers per day (assuming 30 days open). If the shop has 30 seats and turns tables 1.5 times during lunch and 1.5 times during dinner, that is 90 potential customer slots per day — well above the 53 needed to break even.
Margin of safety: (90 capacity − 53 break-even) ÷ 90 = 41%. Sales could drop by 41% before Marco loses money. That is a healthy cushion.
Example 3: Freelancer (Graphic Designer)
Priya is a freelance graphic designer working from home.
| Monthly Fixed Costs | Amount |
|---|---|
| Adobe Creative Cloud | $60 |
| Internet | $75 |
| Professional liability insurance | $95 |
| Accounting software | $30 |
| Self-employment tax reserve (estimated monthly) | $800 |
| Health insurance | $450 |
| Her baseline salary target | $5,000 |
| Total Fixed Costs | $6,510 |
For a freelancer, the “unit” is one billable hour.
| Variable Cost Per Billable Hour | Amount |
|---|---|
| Stock assets purchased per project (avg) | $3 |
| Hosting/file delivery costs | $1 |
| Total Variable Cost Per Hour | $4 |
Hourly rate: $85
Contribution Margin = $85 − $4 = $81 per hour
Break-Even Point = $6,510 ÷ $81 = 80.4 billable hours per month
That rounds to 81 billable hours per month — roughly 20 hours per week if she works 4 weeks.
With 160 available work hours per month, Priya needs to bill only 50.6% of her time to break even. The remaining hours can go to marketing, admin, professional development, and rest. This number is also her floor — if a slow month drops below 81 billable hours, she needs to either find more work, raise her rate, or cut a fixed cost.
What if Priya raises her rate to $95? Contribution margin becomes $91. Break-even drops to 71.5 hours — 10 fewer hours per month. That is an extra 2.5 hours per week she does not need to work, all from a $10/hour rate increase. This is exactly the kind of scenario our break-even calculator sensitivity table reveals instantly.
Example 4: Subscription Business (SaaS Productivity App)
Dev runs a small SaaS app with a monthly subscription model.
| Monthly Fixed Costs | Amount |
|---|---|
| Cloud server infrastructure (base plan) | $800 |
| Dev’s salary | $6,000 |
| Part-time support person | $2,000 |
| Domain, email, tools | $150 |
| Marketing budget (base) | $1,500 |
| Total Fixed Costs | $10,450 |
For a subscription business, the “unit” is one active subscriber per month.
| Variable Cost Per Subscriber | Amount |
|---|---|
| Payment processing (Stripe 2.9% + $0.30 on $19) | $0.85 |
| Incremental server cost per user | $0.40 |
| Email/notification delivery cost | $0.10 |
| Total Variable Cost Per Subscriber | $1.35 |
Monthly subscription price: $19
Contribution Margin = $19 − $1.35 = $17.65 per subscriber
Break-Even Point = $10,450 ÷ $17.65 = 592 subscribers
With 592 paying subscribers, the app breaks even. Subscriber 593 onward generates $17.65 of profit each — and that profit compounds as the subscriber base grows while fixed costs remain flat.
This is why SaaS models are attractive: The variable cost per subscriber ($1.35) is tiny compared to the subscription price ($19), creating a 92.9% contribution margin ratio. Once fixed costs are covered, nearly every dollar of new revenue becomes profit. Compare that to the soap business (53.3% contribution margin) or the restaurant (59%) — SaaS economics produce the steepest profit curve after break-even.
What to Do After You Calculate Your Break-Even Point
The number alone is not useful until you compare it to reality and take action.
Compare break-even to current sales. Are you above or below? If above, calculate your margin of safety: (Actual Sales − Break-Even) ÷ Actual Sales × 100. Aim for 20% or higher.
Model price changes. Run the formula again at 5% and 10% higher prices. A small price increase often reduces break-even dramatically because it goes entirely to contribution margin. Our break-even calculator does this automatically with a sensitivity table.
Identify which input has the most leverage. In most businesses, price changes have more impact than cost changes. Increasing price by $1 raises contribution margin by $1 per unit. Reducing variable cost by $1 does the same — but price increases require no negotiation with suppliers, no process changes, and no quality trade-offs. Test the price increase first.
Recalculate quarterly. Costs change. Suppliers raise prices. You hire someone. Your lease renews at a higher rate. A break-even point calculated in January may be obsolete by April. Set a quarterly calendar reminder.
Use break-even for every major decision. New product launch? Calculate its break-even. New hire? Add their cost to fixed expenses and see how it shifts the number. Considering a price drop to compete? See how many additional units you would need to sell to compensate. The formula takes 30 seconds — use it ruthlessly.
Frequently Asked Questions
Q: How do you calculate break-even point?
A: Divide your total fixed costs by the contribution margin per unit (selling price minus variable cost per unit). The result is the number of units you must sell to cover all costs. For a revenue-based answer, divide fixed costs by the contribution margin ratio (contribution margin per unit divided by selling price).
Q: What is the break-even point formula?
A: Break-Even Point in Units = Fixed Costs ÷ (Selling Price − Variable Cost Per Unit). Break-Even Revenue = Fixed Costs ÷ Contribution Margin Ratio. Both formulas use the same three inputs and produce the same result in different formats (units vs. dollars).
Q: What is a good break-even point?
A: A “good” break-even point is one you can realistically achieve within your sales capacity, with a margin of safety of at least 20%. If your break-even requires selling 90% of your maximum capacity, you are operating with almost no cushion. If it requires 50% of capacity, you have a healthy buffer against slow periods.
Q: How long should it take to reach break-even?
A: It varies dramatically by business type. A freelancer with low fixed costs might break even in month one. A restaurant typically takes 6 to 18 months. A SaaS startup might take 2 to 3 years due to high upfront development costs. The key is knowing the number so you can plan your cash reserves accordingly.
Q: Can break-even analysis work for a multi-product business?
A: Yes. Use the revenue-based method with a weighted average contribution margin ratio. Multiply each product’s contribution margin ratio by its percentage of total revenue, then add the results. Use this blended ratio in the formula. Alternatively, calculate break-even for each product individually if they have distinct cost structures.
Q: What is the difference between break-even point and profit?
A: Break-even is the zero-profit point where revenue exactly equals costs. Profit begins only after you exceed break-even. If your break-even is 500 units and you sell 600, your profit is 100 units multiplied by your contribution margin per unit. Break-even is the starting line; profit is the distance you run beyond it.
Calculate Your Break-Even Point Right Now
You have the formulas, the examples, and the process. Here is your action plan:
- Total your monthly fixed costs (include your own salary).
- Calculate variable cost per unit (every cost that increases per sale).
- Open our free break-even calculator and enter both numbers plus your selling price.
- Compare the result to your current monthly sales.
- Check the sensitivity table: what happens if you raise your price by 5%?
- Calculate your margin of safety and aim for 20%+.
Every business decision you make from this point forward should pass through this filter: “How does this change my break-even point?” A hire that increases fixed costs? Check. A supplier switch that reduces variable costs? Check. A price increase? Absolutely check. The math takes 30 seconds. The clarity lasts all quarter.
