Short answerYour daily loss limit is your risk per trade times the number of losing trades you will accept in a day. Example: ₹5,00,000 capital, 1% risk and 3 losing trades gives ₹15,000. When you are down that much, you stop trading for the day.
How to use this calculator
Fill in four boxes. First, your trading capital. Second, the share of capital you risk on one trade. Third, how many losing trades you will accept before you stop. Fourth, if you want one, a monthly loss cap.
The numbers update as you type. The result panel shows your loss limit for the day, your weekly limit and how many max-loss days in a row would take your capital down 10%, 20% and 50%. Press "Copy my rules" to get a short text you can paste into your notes or a chat with yourself.
The formula
Daily loss limit = max loss per trade × max losing trades
Weekly limit = daily loss limit × 5 trading days
Days to a drawdown = target loss in ₹ ÷ daily loss limit, rounded up
The "days in a row" figures keep the rupee limit fixed. They assume you lose the full limit every day and never cut it. Real life is rarely this neat. The point is to see how fast a streak adds up.
Worked example
Capital is ₹5,00,000. Risk per trade is 1%. Max losing trades is 3. Monthly cap is 6%.
- Max loss per trade: ₹5,00,000 × 1% = ₹5,000.
- Daily loss limit: ₹5,000 × 3 = ₹15,000, which is 3% of capital.
- Weekly limit: ₹15,000 × 5 = ₹75,000.
- Monthly cap: ₹5,00,000 × 6% = ₹30,000, which is 2 full-loss days.
- Down 10% (₹50,000) after 4 max-loss days. Down 20% after 7. Down 50% after 17.
The example shows something useful. A 3% day does not feel big. But two of them already fill a 6% monthly cap. If you would not accept losing 6% in a month, the daily limit is too wide.
Why this matters
The SEBI study for FY26 found that 87.7% of individual F&O traders lost money. The average loss was ₹1.17 lakh, as reported in the press. Research on retail behaviour points the same way. Barber and Odean (2000) studied thousands of brokerage accounts. They found that the households that traded the most earned the lowest returns after costs.
A daily loss limit does not fix a weak strategy. It does one narrow job. It stops one bad day from becoming a bad month. Most big losses do not come from the first loss. They come from the trades after it, when you trade bigger and faster to win the money back. See our guides on revenge trading and overtrading.
A rule you only keep in your head is easy to break. The best place for it is outside your head: a P and L exit in your broker app, or a kill switch. See how kill switches work on Dhan, Upstox and Zerodha.
Source: SEBI study of individual F&O traders for FY26, as reported in the press. Barber, B. and Odean, T. (2000), "Trading Is Hazardous to Your Wealth", Journal of Finance.
Next step: size each trade
Once you know your risk per trade in rupees, turn it into lots. Use the option position size calculator. It takes your risk, your entry and your stop-loss and gives the number of lots.
Common questions
How much should I risk per day in trading?
There is no single right number. Many traders start by risking 1% of capital per trade and allow 2 to 3 losing trades a day. That gives a daily limit of 2% to 3% of capital. Pick a number you can lose on a bad day and still trade the next day calmly.
What is a good daily loss limit for F&O?
It depends on your capital, your strategy and how you handle losses. A smaller limit keeps a bad day small. A limit that is too tight can make you quit on normal noise. This tool does not tell you what to pick. It shows what each choice means in rupees.
Is a daily loss limit the same as a stop-loss?
No. A stop-loss limits the loss on one trade. A daily loss limit caps the total loss across all trades in one day. You need both. Stop-losses stop one trade from growing. The daily limit stops a run of bad trades from growing.
What should I do when I hit my daily loss limit?
Close open positions, stop placing orders and step away from the screen. Write down what happened. Do not try to win it back today. Chasing a loss right after hitting a limit is the classic revenge trade.
Should the limit be a rupee amount or a percentage of capital?
Think in percent, then fix it in rupees. Percent helps you size the rule to your capital. A fixed rupee level is easier to follow and easier to set as a P and L exit in your broker app. Recalculate it when your capital changes by a large amount.
Let your limit act when you will not
TradeGuard AI watches your broker account and can auto-exit your open positions when you reach your daily loss limit on Dhan. It is part of the Guard plan, launching soon. It does not block your orders. Join the waitlist.
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