Partial Take-Profit Calculator: What Happens When You Scale Out of a Trade?

Price ran 60 pips and you told everybody you caught 60 pips. You didn't. You closed half the trade at 20, a quarter at 40, and the last quarter at 60, which means what you actually caught was 35.

That's the whole reason this calculator exists. Scaling out of a trade in pieces is a completely normal way to manage a position, but the second you do it, the biggest number on your chart stops being your result. Your result becomes an average of all the little exits, weighted by how much of the position was still sitting there when each one hit.

Quick vocabulary check before we go further, because I'm not going to assume you've been reading trading forums for five years. A pip is the standard small unit of movement in a currency pair. On EUR/USD it's the fourth decimal place, so 1.1700 moving to 1.1701 is one pip. A lot is how big your position is. One standard lot on EUR/USD is about $10 per pip, 0.10 lots is about $1 per pip, and 0.01 lots is about ten cents a pip. Scaling out, or taking partials, means closing part of your position at one price and leaving the rest open for a further target.

What scaling out actually looks like

You're in EUR/USD with 1.00 lot. Instead of closing the whole thing at one price, you decide ahead of time that you'll close half of it at your first target, a quarter at the second, and the last quarter at the third.

TP1 hits at +20 pips, so 0.50 lots come off.TP2 hits at +40 pips, so 0.25 lots come off.TP3 hits at +60 pips, and the last 0.25 lots come off.

You're out. Price travelled 60 pips and every single one of your targets hit, which is about as good as a trading day gets. So why isn't the answer 60?

Because only a quarter of your money was still in the trade when it got there.

The math, done slowly

Half your position earned 20 pips. A quarter earned 40. A quarter earned 60. To find out what the whole position did, you multiply each piece by what it earned and add them up.

0.50 × 20 = 10

0.25 × 40 = 10

0.25 × 60 = 15

Total: 35 weighted pips.

That's what a 1.00 lot position sitting untouched from entry to exit would have needed to make to match your result. In dollars, on EUR/USD, your three exits paid roughly $100, $100, and $150, so $350. Holding the full lot to 60 pips would have paid $600.

Nobody is doing that arithmetic in their head at 3am while a candle is behaving like it has somewhere urgent to be. That's the calculator's job.

Try the partial take profit calculator

Put in your position size, then each exit: how much you closed and what it made in pips or in R. It hands you back the weighted result for the whole trade, what's still open, and the dollar figure if you've given it your risk.

The best use of it isn't after the fact, it's before you enter. Run your planned exits through it, look at the number, and decide if you'd actually be happy with that number. Most people have never seen it written down.

Percentage of what, exactly

This trips up basically everyone at first, and it isn't your fault, it's genuinely ambiguous language.

You're in 1.00 lot. You close 50%. Half a lot left. Later you say "okay, close another 50%." Do you mean half of what you started with, which closes you out completely? Or half of what's still open, which closes 0.25 and leaves 0.25 running?

Two totally different trades. Say you meant the second one and thought you meant the first. You've now got a quarter of a lot open in the market that you believe is closed, with a stop you stopped paying attention to.

Our calculator treats every percentage as a slice of your original position, and I'd suggest you plan your trades that way too. It's easier to hold in your head, everything adds to 100%, and you can work out all your exit sizes before you're in the trade and slightly emotional. If your percentages add up to 90%, you know instantly that 10% is still out there.

The runner

That leftover 10% has a name. It's called a runner, and it's the piece you deliberately leave open after you've taken the bulk of your profit off, to see how far price will go.

Say you plan 50% at TP1, 25% at TP2, 15% at TP3, and you let the last 10% run. On a 0.20 lot position that's 0.02 lots still open after all three targets, which on a standard pair is around twenty cents a pip. It can go chase whatever it wants. Your account barely notices either way.

Which is exactly the thing to be honest with yourself about. A runner that catches a huge move is fun, and it's also a very small piece of a very good trade. If you take 90% off at +20 pips and the last 10% sails to +100, you made 28 weighted pips. Nothing wrong with 28 pips. It's just not 100, and I'm a bit tired of seeing screenshots that pretend otherwise. If you're going to post the big number, post the size that was still open when you got there.

The same thing in R, because your journal needs it

R is just your risk, used as a unit of measurement. If your stop loss sits 20 pips away from your entry, then 20 pips is 1R for that trade. A target 60 pips out is 3R. It lets you compare a trade on gold with a trade on EUR/USD without converting anything.

Run our same exit plan in R. Half closes at +1R, a quarter at +2R, a quarter at +3R.

0.50 × 1R = 0.50R

0.25 × 2R = 0.50R

0.25 × 3R = 0.75R

Total: +1.75R.

Your chart showed a 3R move. Your trade made 1.75R. Both statements are true and only one of them belongs in your journal.

This matters more than it sounds like it does. If you're recording perfect trades as +3R while your actual management is producing +1.75R, every performance number you calculate afterward is inflated. Your average winner is wrong, so your expectancy is wrong, so your idea of how well your strategy is working is wrong, and you'll find that out eventually in the least pleasant way available.

Break-even win rate is the share of trades you need to win just to stay flat. Roughly, it's 1 ÷ (1 + your average winner in R). Believe your winners average 3R and you'll calculate that you only need to win 25% of the time. Use the real number, 1.75R, and it's 36%. That's a big gap to be wrong by, and it's the difference between a strategy that works and one that quietly bleeds.

Now the other side, because partials aren't just a tax on your winners

Everything above makes scaling out look like a way to make less money. That's only true when price reaches your final target, and price does not usually reach your final target.

Same trade, but this time it gets to +1R and turns around and stops you out.

If you held the whole position: -1R. Full loss.If you'd closed half at +1R: that half made +0.50R, the other half lost -0.50R, and you're flat. Zero.If you'd closed half at +1R and moved the stop on the rest to your entry price: +0.50R, and you kept it.

So the honest version is that partials shave your best trades and rescue your mediocre ones. Whether that's worth it depends entirely on how often your setups reach the far target versus how often they stall halfway, and that's a question about your trading, not about partials in general. Nobody on the internet can answer it for you, including me.

What you can do is pull your last fifty trades and re-run them both ways. Same entries, same stops, one column where you held everything to target, one column where you scaled out. Compare the total R, the win rate, and how deep the worst drawdown got in each. That's a real answer. Copying 50/25/25 because a guy in a video used it is not.

And one warning about "I took profit so I'm fine." You're not automatically fine. Take 25% off at +1R and let the remaining 75% stop out, and you've got +0.25R against -0.75R. The trade lost half an R. You banked money and still went backwards.

Your stop is a separate decision

Hitting TP1 doesn't tell you what to do with the stop on the rest. You can leave it where it is, move it to break even, trail it, or park it under the last structural low. Those are four different plans that produce four different results on the exact same partial.

A lot of people have glued "TP1 hit, move to break even" together in their heads as if it's one rule. It isn't. Moving to break even protects the remaining position from turning into a loss, and it also gets you knocked out of a perfectly good trade on a normal retrace, over and over, and you'll never know which one it's doing to you unless you test it separately.

The calculator does the position math. It has no opinion about your stop.

Your broker might not let you cut it that small

Practical problem, and it catches new traders constantly. Most brokers trade in increments of 0.01 lots. If you're in 0.01 lots to begin with, which is exactly where you should be starting, then 50/25/25 asks you to close 0.005 lots and then 0.0025 twice. You can't. That position doesn't divide.

At 0.04 lots it works out clean: 0.02, 0.01, 0.01. Below that you're choosing between one partial and none. That's fine. Take the whole thing at one target and get on with it. You cannot slice a micro lot into artisanal little pieces just because the spreadsheet would enjoy it.

Don't scale out because you're scared

There's a real difference between "my plan says half comes off at the first target" and "oh god it's green, close something." The first one is trade management. The second one is anxiety with a mouse in its hand, and it will pick a different exit every single time, which means you'll never accumulate enough consistent data to learn anything.

If your honest reason for taking partials is that holding a full position makes you fidget until you ruin the trade, that's still a legitimate reason. An exit plan you can actually follow beats a mathematically superior one you keep abandoning. Just call it what it is, write it down as a rule, and then measure it like a rule.

Where to leave this

Run your normal exit plan through the calculator once, right now, before you're in a trade. Look at the weighted number. If your setups are 1:3 and your plan spits out 1.75R, then 1.75R is your actual reward, and that's the number that goes into every calculation you do about your own performance from here on.

Then go open your journal and find the last ten trades where you scaled out. Recalculate what each one really made. If those numbers don't match what you wrote down at the time, you've just found out something useful about your own record keeping, and it's better to find it now over coffee than in month four of a funded account.

Educational purposes only. Forex trading involves risk. Partial take-profit calculations are mathematical illustrations and do not recommend any specific exit strategy. Actual position sizes and results may vary because of broker minimums, spreads, commissions, slippage, and execution.