Work out exactly how many shares to trade so a single loss never wipes out your account. Enter your capital, the percentage you will risk, your entry and your stop-loss, and get the right quantity instantly. Free, no login required.
A position size calculator tells you how many shares to buy so that if your stop-loss is hit, you lose only a small, fixed amount you decided in advance. You enter your total capital, the percentage of it you are willing to risk on one trade, your entry price and your stop-loss price, and it works out the correct quantity, your position value, and the exact rupee amount at risk. It turns position sizing from a gut-feel guess into simple arithmetic.
Two lines of maths decide everything. Your risk per trade is a small fixed slice of your capital, and your quantity is that risk divided by how far your stop-loss sits from your entry.
Say your capital is ₹1,00,000 and you risk 1% per trade, so your maximum loss is ₹1,000. You plan to buy at ₹500 with a stop-loss at ₹490, so your risk per share is ₹10. Your quantity is ₹1,000 divided by ₹10, which is 100 shares. If the stop-loss is hit you lose exactly ₹1,000, no more, whatever the leverage. Widen the stop to ₹480 and risk per share becomes ₹20, so the quantity drops to 50 shares. A wider stop always means a smaller position, because the rupee risk stays fixed.
Most beginners blow up not because their calls are wrong but because one oversized trade wipes out weeks of gains. Fixing your risk per trade at 1% to 2% means a losing streak dents your capital instead of ending it, which keeps you in the game long enough to learn. Position sizing is the single most important risk-control habit in trading, and it is worth calculating on every trade until it becomes automatic.
Most disciplined intraday traders risk 1% to 2% of total capital on a single trade, never more, regardless of how confident they feel. On ₹1,00,000 capital that is ₹1,000 to ₹2,000 at risk per trade. Keeping this fixed is what stops a string of losses from turning into an account-ending event.
Divide your rupee risk per trade by your risk per share. Risk per share is the difference between your entry price and your stop-loss price. For example, ₹1,000 risk divided by a ₹10 stop distance gives 100 shares. This calculator does that maths for you and rounds down to whole shares.
No. Leverage changes how much margin is needed to hold a position, not how much you should risk. Your quantity should still come from your risk per trade and your stop-loss distance. If leverage lets you afford more shares than the formula allows, the answer is to stick with the formula's quantity, not to size up.
That usually means your stop-loss is very tight relative to the price, which inflates the quantity. In a cash (delivery) trade you are limited by your capital, so take the smaller of the two. In an intraday trade, margin may let you afford it, but you should never exceed the quantity your risk-per-trade rule gives you just because margin allows it.
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