Break-even Point Explained (Fixed vs Variable Costs) + Examples
Your break-even point is where total revenue = total costs. At break-even, you’re not making a profit — but you’re not losing money either.
Break-even helps you quickly answer:
- How many units do I need to sell?
- How many clients do I need per month?
- What price makes this sustainable?
Fixed costs vs variable costs (the key concept)
- Fixed costs don’t change with sales volume (rent, software, insurance).
- Variable costs increase with each unit sold (materials, shipping, payment processing fees).
Break-even formula (units)
Break-even units = Fixed Costs ÷ (Price − Variable Cost per Unit)
Where:
- Price − Variable Cost per Unit = contribution margin per unit
Example 1: Selling a product
You sell a product for $50.
Each unit costs $20 to make/ship.
Fixed costs are $1,200/month.
- Contribution margin = 50 − 20 = $30
- Break-even units = 1,200 ÷ 30 = 40 units
You need to sell 40 units/month to break even.
Example 2: Selling a service (clients)
You charge $300/client and spend $60/client on tools + delivery costs.
Fixed costs are $1,500/month.
- Contribution margin = 300 − 60 = $240
- Break-even clients = 1,500 ÷ 240 = 6.25 → 7 clients
You need 7 clients/month to break even.
Common mistakes (that break the math)
- Forgetting payment processing fees (they’re variable costs)
- Mixing owner salary into “profit” (decide whether it’s fixed cost or profit target)
- Using revenue instead of margin (break-even is margin-driven)
- Ignoring seasonality (monthly break-even can vary)
Run your break-even in seconds
Use the DailyROI Break-even Calculator:
Break-even Calculator
FAQ
What if my variable cost changes over time?
Use an average, then rerun scenarios (best / expected / worst).
What if price changes?
Break-even is extremely sensitive to price. Even small price changes can drastically lower required volume.
What if I have multiple products?
Use a weighted average contribution margin or calculate break-even per product line.
Related
- ROI Calculator: ROI Calculator
- Markup vs Margin guide (coming soon)