ATR used
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Free Tool
Stop-Loss and Target Calculator
Enter an entry, a direction and the instrument's volatility, as an ATR value or a percent of price, then set an ATR multiple for the stop and a reward-to-risk for the target. This tool returns the stop-loss price, the target price, the stop distance in points, percent and ATR multiples, and the position size that holds your rupee risk fixed. The live chart shows the one thing round-number stops ignore: whether your stop sits inside or outside the instrument's noise band.
A stop belongs at a distance set by volatility, not at a round rupee number. A stop inside the noise band is hit by random wiggle and donates the loss; an ATR multiple puts it outside the noise, and the position size flexes to keep the rupees at risk constant.
Scenario preset
Quick pick
Entry & direction
The price at which you plan to enter. Long: stop below, target above. Short: stop above, target below.
Volatility (the stop is measured in these units)
The Average True Range, the size of an ordinary bar, read from your platform on the timeframe you trade. Commonly a 14-period reading.
Stop & target multiples
Common range 1 to 3. Below 1 sits inside the noise band; 1.5 to 2 is the usual comfortable floor.
The target sits this many stop distances from entry. A reward-to-risk of 2 puts the target twice the stop distance away.
Risk budget
The rupees you are willing to lose if the stop is hit. Position size is derived from this and the stop distance.
Optional. Used only to show the rupee risk as a percent of the account. Leave at 0 to skip.
Stop-loss price
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Target price
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Position size
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Rupee risk at stop
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Rupee reward at target
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The noise-band test (the number a round-number stop ignores)
±1 ATR noise band
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Stop distance
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Stop placement
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Resulting reward : risk
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Risk as % of account
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Where the stop and target sit against the noise band
The shaded band is the entry plus or minus one ATR, a proxy for ordinary movement. The stop is drawn against it: coral when it sits inside the band, gold at the edge, green when it is comfortably outside. Redraws from your inputs.
Placement detail
Stop distance is the ATR times the multiple. The target sits the stop distance times your reward-to-risk from the entry, so a wider stop pushes the target further out at the same ratio.
Sizing detail
Position size is the risk budget divided by the stop distance, rounded down. For whole-lot rounding in F&O, the intended-versus-actual risk gap and portfolio heat, use the position sizing calculator. For the win rate this reward-to-risk demands, use the risk-reward ratio calculator.
Flags to review before placing the stop
The arithmetic is trivial once the volatility is known. The judgement is not: reading the right ATR for your timeframe, deciding the multiple that keeps the stop outside the noise without strangling the size, and holding the stop where you put it when price probes it. That discipline, placing risk by what the instrument actually does rather than by a round number or a feeling, is what the method we teach is built around.
The one principle
A stop-loss belongs at a distance set by the instrument's volatility, not at a round rupee number and not at a fixed percent of price. The Average True Range measures the size of an ordinary bar, so roughly one ATR around the entry is the noise band, the zone where price wanders with no information in it. A stop inside that band is hit by random movement and donates the loss; a stop placed a multiple of the ATR outside it is triggered only when price has genuinely moved. Fix the stop by volatility, then let the position size flex: quantity is the risk budget divided by the stop distance, so the rupees at risk stay constant while the stop and the size adjust to how wild the instrument is.
Where you put the stop is not a detail, it is most of the outcome. The SEBI FY25 finding that over 91 percent of individual derivatives traders were net loss-making, with aggregate net losses of about 1,05,603 crore rupees, is usually read as an edge problem, but a large part of it is stop placement. Two habits dominate the losing accounts: no stop at all, so one trade takes a loss that many winners cannot repair, and a stop pinned so tight, at a round number or a fixed few rupees inside the noise, that ordinary volatility triggers it and the account is bled by a thousand small, avoidable exits. A volatility-based stop is the direct fix for the second habit and the discipline that makes the first unthinkable.
The math, derived
Read the trade from volatility outward. The ATR is the unit; the stop is a multiple of it; the target is a multiple of the stop; the size is whatever holds the rupee risk fixed. Nothing here depends on a round number or on how sure you feel.
ATR = average true range, the size of an ordinary bar
stop distance = ATR × multiple
long stop = entry − stop distance (short: entry + stop distance)
target distance = stop distance × reward-to-risk
long target = entry + target distance (short: entry − target distance)
risk per unit = stop distance
position size = risk budget ÷ risk per unit (round DOWN to whole units or lots)
rupee reward = position size × target distance
stop distance = ATR × multiple
long stop = entry − stop distance (short: entry + stop distance)
target distance = stop distance × reward-to-risk
long target = entry + target distance (short: entry − target distance)
risk per unit = stop distance
position size = risk budget ÷ risk per unit (round DOWN to whole units or lots)
rupee reward = position size × target distance
Worked on the defaults above: an entry of 1000 with an ATR of 20 and a multiple of 1.5 gives a stop distance of 30, so a long stop sits at 970. A reward-to-risk of 2 puts the target 60 away, at 1060. A risk budget of 3,000 rupees divided by the 30-rupee stop distance is a position of 100 units, so the rupee risk is 3,000 and the rupee reward is 100 times 60, or 6,000. Change the ATR and every number downstream moves, but the 3,000 of risk does not, because the size absorbs the change. That is the whole point of sizing off the stop rather than off a fixed quantity.
Why the target is anchored to the stop, not chosen freely. Setting the target as a fixed number of stop distances keeps every trade on the same reward-to-risk, so you can never quietly move the target out to make a weak trade look attractive. The stop sets the unit of risk; the target is a set number of those units away. Whether the target actually fills is a separate question that this tool does not answer, and a distant target reached rarely is not the same as a high expectancy: for the win rate a given reward-to-risk demands, use the risk-reward ratio calculator.
The noise band, in one picture
The core idea is visual. One ATR around the entry is the band of ordinary movement. A stop inside it is clipped by wiggle that carries no information; a stop a multiple of the ATR outside it is only reached when price has genuinely moved. The difference is the difference between being stopped because you were wrong and being stopped because the market breathed.
Reference: the ATR multiple sets the stop distance and the size
Hold the ATR at 20 on a 1000 entry and the risk budget at 3,000 rupees, and vary only the multiple. The stop distance is the multiple times the ATR; the position size is the budget divided by that distance. Two things move together: a wider multiple pushes the stop further outside the noise, and it shrinks the position, because the same rupees at risk now buy fewer units of a wider stop.
| ATR multiple | Stop distance (₹) | Stop as % of price | Position size (units) | Rupee risk | Noise-band placement |
|---|---|---|---|---|---|
| 1.0× | 20 | 2.0% | 150 | ₹3,000 | At the edge, marginal |
| 1.5× | 30 | 3.0% | 100 | ₹3,000 | Outside, comfortable |
| 2.0× | 40 | 4.0% | 75 | ₹3,000 | Outside |
| 2.5× | 50 | 5.0% | 60 | ₹3,000 | Outside, wide |
| 3.0× | 60 | 6.0% | 50 | ₹3,000 | Outside, very wide |
The position at a 3.0 multiple is a third of the position at 1.0, for the identical rupee risk. Neither is wrong; they are different trades. The tight multiple holds more units through a stop that noise can reach; the wide multiple holds fewer units through a stop that only a real move reaches. The choice is how often you are willing to be noise-stopped in exchange for size, and it should be made deliberately, not defaulted to a round percent.
Reference: volatility-scaled versus fixed-percent versus fixed-rupee stops
The reason to scale by volatility is that a single fixed number cannot fit instruments that move differently. Take three instruments at different prices and different volatilities and apply three stop methods to each. Only the ATR stop lands in the same place, in noise terms, on all three.
| Stop method | Calm: price 500, ATR 5 | Normal: price 1000, ATR 20 | Volatile: price 2000, ATR 100 |
|---|---|---|---|
| ATR stop, 1.5× ATR | ₹7.5 (1.5 ATR, outside) | ₹30 (1.5 ATR, outside) | ₹150 (1.5 ATR, outside) |
| Fixed percent, 3% of price | ₹15 (3.0 ATR, too wide) | ₹30 (1.5 ATR, fits by luck) | ₹60 (0.6 ATR, inside noise) |
| Fixed rupee, ₹30 flat | ₹30 (6.0 ATR, absurdly wide) | ₹30 (1.5 ATR, fits by luck) | ₹30 (0.3 ATR, deep inside noise) |
Read across the rows. The ATR stop is a steady 1.5 ATR on every instrument, so it is always outside the noise and always sizes sensibly. The fixed-percent stop happens to fit the normal instrument, is twice too wide on the calm one and, worst, sits inside the noise on the volatile one where it will be repeatedly triggered by ordinary movement. The fixed-rupee stop is chaos: a round 30 rupees is six ATR on the calm instrument, so the position is tiny, and a third of an ATR on the volatile one, so it is a near-guaranteed noise stop. The round number feels concrete, and it is exactly the wrong kind of concrete.
Reference: the position flexes to hold rupee risk constant
The counterpart to a volatility-scaled stop is a volatility-scaled size. Hold the entry at 1000, the risk budget at 3,000 rupees and the multiple at 1.5, and change only the ATR. As the instrument gets more volatile, the stop widens and the position shrinks in exact proportion, so the rupees at risk if the stop is hit never change.
| ATR (₹) | ATR as % of price | Stop distance at 1.5× (₹) | Position size (units) | Rupee risk |
|---|---|---|---|---|
| 10 | 1.0% | 15 | 200 | ₹3,000 |
| 20 | 2.0% | 30 | 100 | ₹3,000 |
| 25 | 2.5% | 37.5 | 80 | ₹3,000 |
| 40 | 4.0% | 60 | 50 | ₹3,000 |
| 50 | 5.0% | 75 | 40 | ₹3,000 |
From the calmest to the wildest row the position falls from 200 units to 40, a factor of five, while the rupee risk sits still at 3,000. This is the property that makes volatility-based trading coherent: you are never risking more on the volatile instrument, you are simply holding less of it. A trader who keeps the quantity fixed and lets the stop distance vary is doing the opposite, taking five times the rupee risk on the volatile instrument as on the calm one without noticing, which is precisely how an ordinary losing streak turns into an account-ending one.
Failure modes: where the volatility stop still fails you
A stop placed correctly by the ATR is still only as good as the assumptions under it. Five conditions detach the loss you actually take from the tidy stop distance the tool prints, and every one has emptied accounts that were, on paper, stopping sensibly.
1. Gaps jump the stop. The ATR measures continuous, intraday movement, not the jump when a market reopens on news. A stop at 970 does nothing if the instrument gaps to 940 overnight; the fill is set by the open, not the level, and the realised loss is larger than the ATR distance. No multiple of a normal-range measure protects against a move that skips the level entirely. The stop distance is the planned loss when the market trades through your price, not a ceiling on what a gap can take.
2. The ATR lags a regime change. ATR is a trailing average, so for a while after volatility spikes it is still reporting the calm that came before. A stop sized off yesterday's low ATR is too tight for today's higher one, and you are noise-stopped precisely when the market has become most dangerous. When conditions visibly change, an event, a breakout, a spike in range, treat the ATR reading as stale and widen the multiple, or stand aside until the average catches up.
3. Widening or moving the stop. The most expensive habit in trading is nudging the stop further away as price approaches it, to turn a defined loss into a hope. It converts the volatility-sized stop you calculated into an open-ended one, and the loss you eventually take is far larger than the one the size was set for. A stop that moves is not a stop. The whole value of placing it by the ATR is destroyed the moment you let a losing trade renegotiate the distance.
4. Slippage on the fill. The stop distance assumes you exit exactly at the level. In a fast move or a thin instrument the fill comes worse than the trigger, so the realised loss is bigger than the ATR distance and the true reward-to-risk is smaller than the one you planned. Slippage is worst on the volatile instruments where the ATR stop is already widest, so budget for a loss somewhat larger than the stop distance on anything that moves fast or trades thin.
5. Stop-hunting around obvious levels. If your ATR stop happens to land a hair below a visible swing low or a widely watched round number, it joins a cluster of resting stops that a brief probe can run before reversing. The fix is not to abandon the ATR, it is to avoid pinning the stop to the obvious level: place it by the volatility distance and, where that lands right on a crowded level, push it a little beyond, so a stop-running probe takes out the level without taking out you.
The volatility-stop lens on the SEBI base rate
The SEBI FY25 study found over 91 percent of individual traders in the equity derivatives segment net loss-making, with aggregate net losses of about 1,05,603 crore rupees, up roughly 41 percent on the year. Edge is part of the story, but stop placement is a larger part than it is given credit for. Two failures dominate. The first is no stop at all: a trader who cannot bear to book a loss holds a losing position until it is a catastrophe, and a single such trade erases the small, patient gains of many good ones. The second is the opposite and just as fatal: a stop pinned so tight, at a round number or a fixed few rupees that sits inside the instrument's noise, that ordinary volatility triggers it again and again, and the account is bled to death by a hundred small, avoidable exits plus the costs of each round trip.
A volatility-based stop is the direct answer to the second failure and the frame that makes the first indefensible. It places the exit where the instrument's own movement says a real move has happened, not where a round number happens to fall, and it forces the position size to flex so the rupees at risk are chosen deliberately rather than smuggled in by a wide stop on a fixed quantity. The stop distance decides where you are wrong; the position sizing calculator turns that distance into a quantity that survives whole-lot rounding and a portfolio heat cap; the risk-reward ratio calculator turns the target into the win rate the setup must clear; and the risk of ruin calculator shows how long a losing run has to be before it ends the account at that size. Placement is the first decision, and getting it wrong is why so many accounts never reach the others.
Common Questions
Frequently Asked Questions
How do you calculate a stop-loss using ATR?
+An ATR stop places the exit a multiple of the Average True Range away from your entry, so the stop is set by how much the instrument actually moves rather than by a round number. First take the ATR, the average size of a bar over a lookback, commonly 14 periods; you can read it from your platform or approximate it as a percent of price. Then pick a multiple, usually between 1 and 3, with 1.5 to 2 a common default. The stop distance is the ATR times the multiple. For a long trade the stop-loss price is the entry minus that distance; for a short it is the entry plus it. On an entry of 1000 with an ATR of 20 and a multiple of 1.5, the stop distance is 30, so a long stop sits at 970. The point of scaling by ATR is that the same multiple gives a tight stop on a calm instrument and a wide one on a volatile instrument, so the stop is always measured in the instrument's own units of movement.
What ATR multiple should I use for a stop-loss?
+The common range is 1 to 3, and the right value depends on your timeframe and how much noise you are willing to sit through. A multiple below 1 places the stop inside the average bar range, which is the noise band, so ordinary fluctuation hits it and you are stopped out of trades that were never wrong. A multiple of 1.5 to 2 is the usual comfortable floor for swing and positional trades: it sits outside single-bar noise while keeping the stop close enough that the position is a reasonable size. A multiple of 2.5 to 3 suits volatile instruments or trend trades you want to give room to breathe, at the cost of a wider stop and therefore a smaller position for the same rupee risk. Above 3 you are usually paying in size for protection you rarely need. There is no universally correct number, only a trade-off: a wider multiple is stopped out less by noise but forces a smaller position and a more distant target for the same reward-to-risk.
How do you calculate a target price from a stop-loss?
+Set the target as a multiple of the risk you are already taking, so the reward is defined relative to the stop rather than picked at random. Once the stop distance is fixed, the target distance is the stop distance times your reward-to-risk multiple, and the target price is the entry plus that distance for a long, or the entry minus it for a short. On a long entry of 1000 with a stop distance of 30, a reward-to-risk of 2 puts the target 60 away, at 1060. Anchoring the target to the stop keeps every trade on a consistent reward-to-risk, so a wider stop automatically pushes the target further out and a tighter stop brings it closer. The discipline this enforces is that you never move the target to make a trade look attractive; the stop sets the unit of risk and the target is a fixed number of those units away. Whether that target actually fills is a separate question, and a distant target reached rarely is not the same as a high expectancy.
What is the ATR noise band and why does it matter for a stop?
+The noise band is the range of ordinary, non-directional movement around the price, and one ATR is a practical proxy for its width because ATR is the average size of a bar. Inside roughly one ATR of the entry, price is wandering, not trending; that zone gets filled and refilled by normal buying and selling with no information in it. A stop placed inside that band is therefore hit by random wiggle rather than by your idea being wrong, so you take the loss and then watch the trade go your way without you. Placing the stop a multiple of the ATR away moves it outside the band, so it is triggered mainly when price has genuinely moved beyond ordinary noise, which is the only kind of move that should stop you out. This is the single reason a volatility-based stop beats a round number: the round number knows nothing about the instrument's noise, while the ATR multiple is measured in exactly those units.
Is a volatility-based stop better than a percentage or a fixed-rupee stop?
+For most discretionary trading, yes, because only the volatility-based stop adapts to the instrument. A fixed-rupee stop, say a round 30 rupees on every trade, is meaningless across instruments: 30 rupees can be six ATR on a calm stock, a sensible 1.5 ATR on another, and a third of an ATR on a volatile one, so the same number is far too wide on the first and deep inside the noise on the last. A fixed-percent stop, say 3 percent of price, is better because it scales with price, but it still ignores volatility: two stocks at the same price can have very different ATRs, and 3 percent is generous on the quiet one and tight on the wild one. The ATR stop fixes this by measuring the stop in the instrument's own units of movement, so the same multiple gives a consistent distance in noise terms on every instrument. The cost is that you need an ATR reading and it lags a sudden change in volatility, which is a real limitation rather than a reason to prefer a number that ignores volatility entirely.
How does my position size change when I use a volatility-based stop?
+The position size flexes with volatility so that the rupee risk stays fixed. Position size is your risk budget divided by the stop distance, and with an ATR stop the stop distance is the ATR times the multiple, so a more volatile instrument has a wider stop and therefore a smaller position, while a calmer instrument has a tighter stop and a larger position. Hold the risk budget at 3000 rupees and the multiple at 1.5: at an ATR of 10 the stop is 15 and you can hold 200 units; at an ATR of 50 the stop is 75 and you hold 40 units. In both cases the rupees at risk if the stop is hit are the same 3000, because the size fell exactly as the stop widened. This is the property that makes the method coherent: you are not risking more on the volatile instrument, you are holding less of it, so a fixed fraction of the account is on the line regardless of how wild the instrument is. The tool computes this raw quantity for you; whole-lot rounding in F&O and portfolio heat are handled in the position sizing calculator.
Does an ATR stop work the same for intraday and swing trading?
+The method is identical, but the inputs change with the timeframe. Intraday traders read the ATR on an intraday bar, a 5-minute or 15-minute candle for example, so the ATR is a small number and the stop is close; swing and positional traders read the ATR on the daily bar, so it is larger and the stop is wider. The multiple also tends to differ: intraday scalps often use a tighter multiple because they cannot sit through a wide stop, while swing trades use 1.5 to 3 to give the position room across several sessions. The one rule that holds across both is that the stop must sit outside the noise band of the timeframe you are trading, and the noise band is measured by the ATR of that same timeframe. Using a daily ATR to place an intraday stop, or the reverse, is the common error: it puts the stop in the wrong units and either strangles the trade or leaves it unprotected.
Does a stop-loss guarantee my maximum loss?
+No. A stop is an instruction to exit once a price is touched, not a promise about the price you get. If the market gaps across your level overnight or in a fast move, the fill comes at the next available price, which can be well beyond the stop, so the realised loss is larger than the ATR distance the tool shows. An ATR stop is placed outside ordinary noise, but a gap on news is not ordinary noise, and no multiple of a normal-range measure protects against a jump that skips the level entirely. This is also why the ATR can mislead just after a volatility regime changes: it is a trailing average, so it stays low for a while after volatility has spiked, and a stop sized off the old, low ATR is too tight for the new regime. Treat the stop distance as the planned risk when the market trades continuously, and rely on position size, not the stop alone, to keep a single gap from doing lasting damage.
Where should I not place a stop-loss?
+Not at a round number, not inside the noise band, and not exactly where everyone else is watching. A round number like 1000 or 500 has no relationship to the instrument's volatility, so it is arbitrary as a risk level even though it feels natural. Inside one ATR of the entry is the noise band, where the stop is hit by ordinary fluctuation rather than a real move. And the exact obvious level, a hair below a visible swing low or a widely quoted support, is where resting stops cluster, so a brief probe that runs those stops and reverses, sometimes called a stop hunt, is common; placing the stop a little beyond the obvious level, sized by the ATR rather than pinned to the level itself, avoids donating your exit to that probe. The constructive rule is the inverse of all three: place the stop where the trade idea is genuinely wrong, then check that the distance is at least a sensible ATR multiple so it sits outside the noise, and size the position from that distance rather than forcing a distance to fit a size you wanted.
Where the facts come from
Sources
- The ATR and the true range. The Average True Range and the true range are defined in J. Welles Wilder, New Concepts in Technical Trading Systems (1978): the true range is the largest of the current high minus low, the high minus the prior close, and the prior close minus the low, and the ATR is its average over a lookback, commonly 14 periods. The volatility-stop convention, placing the exit a multiple of the ATR from the entry, follows from it and is developed in the position-sizing literature such as Van K. Tharp, Trade Your Way to Financial Freedom. investopedia.com
- The placement and sizing identities. Stop distance equals the ATR times the multiple; the stop and target prices follow by adding or subtracting that distance and the reward-to-risk multiple; position size equals the risk budget divided by the stop distance. These are arithmetic identities, derived in full on this page, not empirical claims. Every output is computed from the values you enter.
- The FY25 loss base rate. SEBI study on the profit and loss of individual traders in the equity derivatives segment: over 91 percent net loss-making in FY25, with aggregate net losses of about 1,05,603 crore rupees, up roughly 41 percent from about 74,812 crore in FY24, across the top brokers and around 96 lakh unique traders. business-standard.com
Educational note. This tool computes figures from your own inputs; every output is illustrative and depends entirely on the entry, direction, volatility, multiples and risk budget you enter. The ATR is a reading you supply, not a measurement the tool makes, and the stop distance is the planned risk only when the market trades continuously through your level. The reference tables are arithmetic models, not predictions of any account's results, and nothing here is a claim about the returns or profit any approach will achieve. Nothing on this page is a recommendation to trade, to use leverage, or to buy or sell any security, and it is not investment advice. Bharath Shiksha is an educational publisher, not a SEBI-registered investment adviser or research analyst.