Breakeven Points Calculator: Trading Costs per Unit

Breakeven points are the price movement needed to recover trading costs per unit. This breakeven points calculator divides its estimated Total Charges by your total quantity. Its Breakeven Move is a cost distance rounded to whole units. It can hide small price moves and is not a precise exit price. The form uses stored charges and has no broker or exchange selector, so compare its estimate with the tariff and contract note for your actual trade.

Read the quantity labels before entering a trade

• Segment: Equity Delivery, Equity Intraday, Futures (F&O) or Options (F&O). Choose the transaction type you are calculating.
• Buy Price (₹) and Sell Price (₹): prices per share, futures unit or option-premium unit. These are manual inputs.
• Quantity (units per lot): shares for equity, or units in each derivatives lot.
• Number of Lots (1 for equity): the lot count that multiplies Quantity. For shares, keep this at 1.

Total quantity is Quantity × Number of Lots. If you already entered the full derivatives quantity, multiplying it by the lot count again overstates both trading value and price profit. Check the actual contract before using a default quantity; the form does not look up the current lot size. Use positive prices and quantities; blank or zero entries can substitute stored defaults.

For options closed before expiry, enter the option’s buy and sell premiums. An index level is not a premium, and a premium-point move does not equal the same point move in the underlying index. The calculator also has no strike or expiry-settlement input.

From trading charges to a cost distance

Gross P&L = (Sell Price − Buy Price) × total quantity. Total Turnover = (Buy Price + Sell Price) × total quantity. Net P&L = Gross P&L − Total Charges. The form then divides Total Charges by total quantity for Breakeven Move.

Its charge cards show Brokerage, STT / CTT [transaction taxes], Exchange Charges, SEBI Charges, GST [tax on specified services], Stamp Duty and DP Charges [charges for securities debits]. These are estimates from the stored model. Labels do not establish that every item or exception applicable to your account was included.

The tool applies one assumed order on each side and a common brokerage formula outside delivery. It does not accept your broker’s plan, number of executed orders, financing costs or individual adjustments. Its options brokerage can differ from a broker’s flat option-order fee, especially for small premium values.

NSE’s charge circular separates exchange fees from its investor-protection contribution. Zerodha’s tariff separately lists brokerage, statutory charges and delivery debit charges. Their published information illustrates why total trading cost is more than brokerage alone. Check the verified charges changelog for the dated rate record.

Breakeven exit price formula for long and short trades

Breakeven price is the exit price at which your net profit after all charges is zero. For a trade that starts with a buy, the breakeven exit is the entry price plus the cost per unit. For a trade that starts with a sale (a short), it is the entry price minus the cost per unit, because you need the price to fall by that much before costs are covered.

• Cost per unit = total round-trip charges ÷ total units.
• Long breakeven exit = buy price + cost per unit.
• Short breakeven exit = sell price − cost per unit.

Use the earlier worked example: a buy at ₹500 for 100 shares, with total charges of about ₹53.20. The cost per unit is 53.20 ÷ 100 = ₹0.53, so the long breakeven exit is near ₹500.53. A short sale at ₹500 with the same cost has a breakeven near ₹499.47. These are approximations, because some charges depend on the exit value and change a little when the exit price changes. To check an exit, type it into Sell Price and read Net P&L.

Worked example using the calculator’s equity intraday model

Use this made-up NSE equity intraday trade: Buy Price ₹500, Sell Price ₹501, Quantity 100 shares and Number of Lots 1. The trading values are ₹50,000 bought and ₹50,100 sold, giving Total Turnover ₹1,00,100. Gross P&L is (501 − 500) × 100 = ₹100.

The stored intraday model gives an unrounded cost total of ₹53.2047406. That is ₹53.20 to the nearest paisa, with a net result of ₹46.80. However, the calculator rounds its cards to whole rupees: Total Charges shows 53, Net P&L shows +₹47 and Breakeven Move shows 1/unit. The unrounded cost distance is about ₹0.53 per unit. The card’s whole-unit rounding is too coarse to use as a precise exit distance.

This example reproduces the tool’s current output, rather than a sample contract note. The calculation keeps intermediate costs unrounded, then rounds most cards to whole rupees, including the per-unit movement. A broker may group and round its billing differently. Check detailed arithmetic and the actual contract note before relying on a small displayed gain or distance.

Why adding the displayed move is only an approximation

For a long position and an unchanged assumed cost total, entry price plus cost per unit gives a charge-recovery price. But some charges depend on the exit value. If you replace the Sell Price with a proposed breakeven exit, the charges change too.

The calculator computes costs at the buy and sell prices supplied; it does not repeatedly solve for an exit price at which Net P&L is exactly zero. It also rounds Breakeven Move to a whole unit. Treat that card as a rough indication, especially when a fraction of a rupee matters to the trade.

To check an exit scenario, change Sell Price and inspect Net P&L at that proposed exit. Keep the segment and actual quantity consistent. A positive gross amount can still become a net loss after costs, while equal buy and sell prices usually leave a loss equal to the charges.

Percentage move needed to break even

A rupee amount is hard to compare across stocks, so convert it to a percentage of entry: cost per unit ÷ entry price × 100. In the example, 0.53 ÷ 500 × 100 is about 0.11%. The stock must move about 0.11% in your favour before you have covered costs.

That looks small, but it is a fixed hurdle on every trade. If your usual intraday target is a 0.3% move, costs eat over a third of the gross gain. The smaller the target, the more costs matter, which is why scalpers watch this number more than swing traders do.

Cost recovery versus option expiry breakeven

This page estimates the cost of buying and selling at stated prices. It has no option strike or settlement value field, so it cannot determine the underlying level needed for an option to break even at expiry. It also cannot price an option strategy with several legs [separate contracts within one strategy] from its combined premium alone.

Use the options breakeven calculator for an expiry-payoff question, with its own stated limits. For reviewing a planned trade’s upside and downside, the risk reward calculator answers a different question from cost recovery.

A futures or option quantity also does not determine the margin required. Trading value, estimated fees, planned loss and blocked margin are distinct amounts. This calculator has no margin input and does not establish whether your account can fund the position.

Slippage and spread: the hidden costs

This tool counts charges only. It does not count slippage, the gap between the price you expected and the price you got, or the bid-ask spread, the gap between the best buy and sell prices. Both move your real breakeven further away. See the glossary for slippage and bid-ask spread.

To include them, estimate the extra rupees per unit on entry and on exit and add both to the cost per unit. If you lose ₹0.10 per share to slippage on entry and ₹0.10 on exit, that is ₹0.20 more. The long breakeven in the example above moves from about ₹500.53 to about ₹500.73. Your journal can hold the real figure: record the price you planned and the price you got on each trade, and the average gap tells you how much slippage to assume next time.

Reconcile the estimate with a completed trade

After execution, compare the actual prices, traded quantity, charge lines and net result against your contract note. If you closed in pieces, preserve the quantities and prices for those pieces rather than using an unmatched final price for the entire trade.

In OneTradeJournal, trades are recorded manually and charges are estimated per trade. Keep final contract-note figures with your review when they differ from an estimate. The useful comparison is whether the price move covered the actual total cost, then whether the execution followed the plan.

Breakeven win rate from your risk-reward

Breakeven can also mean the share of trades you must win to come out even over many trades. If you risk 1 unit to make RR units, the win rate that gives zero profit is 1 ÷ (1 + RR). With a cost of c units per trade, where c is the average cost as a fraction of your risk, it becomes (1 + c) ÷ (1 + RR).

Costs raise the win rate you need at every ratio. To measure your real position, use the trading expectancy calculator and the risk-reward calculator. For the method, read how to calculate trading expectancy.

Futures breakeven per lot

For futures, enter the lot size as Quantity and 1 as Number of Lots. NSE's lot file, opened on 28 Oct 2026 with NOV-26 as its first column, lists 65 for Nifty. The total cost calculator's fictional round trip from 22,500 to 22,600 on one lot gives total charges of about ₹877.71. Divide by 65 and the cost is about 13.5 index points. The Nifty has to move 13.5 points in your favour for the lot to break even, with brokerage at the calculator's preset. Your broker's brokerage may differ. See the total trading cost calculator for that example, and the lot size reference table for other contracts. Lot sizes change, so check the current NSE file before using 65.

Averaged positions and option buyers

If you buy in two parts, your breakeven starts from the average price. Buy 100 shares at ₹500 and 100 at ₹480, and the average is (50,000 + 48,000) ÷ 200 = ₹490. Add the cost per unit of the whole trade to that average. For an option buyer, the cost-recovery number on this page is the premium move needed to cover charges. The level the index must reach at expiry is a different figure: for a call it is the strike plus the premium, before charges. A 23,000 call bought at a made-up premium of ₹150 breaks even at expiry near 23,150, plus costs. The section above on option expiry explains why this tool cannot compute that level.

Sources

• NSE: Revision in Transaction Charges (checked 15 October 2026).
• Zerodha: Brokerage charges, fees and taxes (checked 15 October 2026).