Break-even Calculator
Find your break-even price for stock trades or break-even units for business operations
functions Formulas
Stock: BE Price = (Buy Cost + All Charges) / Qty
Business: BE Units = Fixed Costs / (Selling Price − Variable Cost)
Contribution Margin = Selling Price − Variable Cost
Real-Life Guide to Using the Break-even Calculator
Break-even price for buy/sell trades. Use the examples and checks below to turn the number into a practical decision.
When this calculator is useful
Use this right before or after entering a stock or options trade, when you need the exact price level at which the position stops being a loss and starts being a genuine profit, once charges or premium are factored in.
For most people, the best way to use the Break-even Calculator is to try the real case first, then change one input at a time. That makes the trade-off visible. For example, with a loan calculator you can change tenure while keeping the same rate; with an investment calculator you can change return assumption while keeping the same monthly contribution; with a health, education or measurement calculator you can check how much one input changes the final category.
The result should answer a practical question: Can I afford this? How much should I save? Is this score enough? Is this measurement within range? What is the safer or cheaper option? If the output does not answer the decision clearly, adjust the inputs until the scenario matches your real situation.
Practical Advice
Use the Break-even Calculator as a planning tool, not just a number generator. Write down the inputs you used, because the final answer is meaningful only when you remember the assumptions behind it.
If the decision affects money, health, tax, safety, academics or legal compliance, keep a second check ready. That second check may be a bank quote, payslip, official rule, prescription, site measurement, mark sheet or invoice.
Common Mistakes
- Assuming the sell price simply needs to match the buy price to break even, ignoring that brokerage, STT, and other charges push the true breakeven slightly higher for a buyer.
- Working out breakeven using brokerage alone and forgetting STT, exchange charges, and stamp duty also eat into the margin for intraday and options trades.
- For a call option buyer, assuming breakeven equals the strike price, when it is actually strike price plus the premium paid.
- For an option seller, forgetting their breakeven moves against them by the premium received, not staying fixed at the strike price.
- Computing breakeven per lot instead of per share for F&O positions, which throws off the price level by a large margin once multiplied back.
How to Interpret Results
The result is the precise price the underlying must reach for the position to turn from loss to profit; for a long position exit before price falls further below this level, and for a short or written position watch for the price crossing it in the unfavourable direction.
A good interpretation looks at both the main result and the supporting values. If a page shows totals, ratios, categories, schedules or warnings, read those together instead of focusing only on the biggest number.
Break-even Calculator FAQs
Useful answers for interpreting the output, avoiding mistakes and using the result responsibly.
What is a Breakeven Calculator?
The breakeven point in stock trading is the price at which you neither profit nor lose on a trade — accounting for all transaction costs (brokerage, STT, GST, stamp duty, SEBI charges). Your actual buy price is not your breakeven — transaction costs push it slightly higher for a long position.
For business, the breakeven point in units is where total revenue equals total costs. It's calculated as: Fixed Costs / (Selling Price − Variable Cost per unit), also known as the Contribution Margin method. Knowing your breakeven helps set realistic sales targets and pricing strategies.
Frequently Asked Questions
Stock and business breakeven explained