The formula
Break-even units = fixed costs ÷ (price − variable cost per unit).
The bracket is the contribution margin: what each sale leaves to pay the fixed costs. With $1,500 of monthly fixed costs, a $25 price and $10 of cost per unit, each sale contributes $15, so you need 100 sales a month to break even. Every sale after that is profit.
Fixed or variable?
- Fixed costs don't change with sales: rent, insurance, subscriptions, software, loan repayments, and the pay you want to take.
- Variable costs come with each sale: goods or materials, packaging, card or marketplace fees, delivery.
Include the pay you need to live on in the fixed costs. Otherwise "breaking even" means working for nothing.
Use it to decide
Try a higher price, a cheaper supplier or lower rent and watch the break-even point move. If it's far above what you can realistically sell, change the plan before you start. See small business ideas and cost price.
About this calculator
It assumes one product or an average price and cost. Nothing you type leaves your browser.
Frequently asked questions
What is a break-even point?
The level of sales where revenue exactly covers all costs: no profit, no loss.
What if I sell several products?
Use an average selling price and an average variable cost, weighted by how much of each you sell.
Should I include my own pay?
Yes, as a fixed cost. Otherwise the business can break even while you earn nothing.