Understand crypto, then grow your money · a crypto + finance guide for beginners

简体中文繁體中文EnglishEspañolالعربية

Position / Risk Calculator

Decide first how much this one trade can lose, then work backward to how much to put in. This is insurance on a single trade, not a nudge to go all in.

$
The total you plan to put into this kind of asset. Note: money you can afford to lose, not your whole net worth.
% of capital
If this trade goes wrong, how much of your total capital you'll let it cost. Beginners often use 1% to 2%, meaning a single loss no more than that share of capital.
%
How far it can drop after you buy before you admit you're wrong and get out. Enter 10, for instance, and you stop out when the price falls 10%.

Suggested order size
—
Most this trade loses
—
Share of total capital
—
How much this trade takes up
Loss if stop-loss hits
—
Read this: this is a "cap your single-trade risk" calculation. It tells you, under the stop-loss discipline you set, how much to put into this trade so the loss won't exceed the cap you chose. It is not a nudge to go all in, and not a buy signal. If the figure comes out bigger than your total capital, your stop-loss is too loose. Tighten the stop or lower the per-trade risk, don't actually put that much in. Leverage multiplies losses, and this tool does not endorse leverage.

Box in the risk, then act

Working out how much to put into one trade matters more than studying what to buy. To do it for real, you need an account that lets you place limit orders and set stops. Binance is the easiest place for a beginner to start.

Sign up now → Read the traps beginners hit first
Code BNB2569 · fee discount applies · this is not the official Binance site
About position sizing and single-trade risk, worth two minutes

A lot of beginners lose money not because they read the direction wrong, but because they put too much into one trade. Same wrong call, and one person loses 2% and calmly corrects, while another goes all in, loses half their capital in one shot, and from there their nerves break and they start flailing. Position management is there to solve exactly this: before you act, decide the most this trade can lose, then work backward to how much to put in. It won't guarantee you a profit, but it can guarantee one mistake won't be fatal.

The calculator's formula

At its core it's one formula: suggested order size = total capital × per-trade risk% ÷ stop-loss%. For example, you have 20,000 in capital, you're willing to lose at most 2% on a trade (that's 400), and you plan to stop out at a 10% drop. So the order size = 20,000 × 2% ÷ 10% = 4,000. That way, if it really falls to your stop and you sell, you lose exactly 4,000 × 10% = 400, precisely the cap you set. The tool also shows the trade's share of total capital and how much you'd actually lose if the stop hits, all calculated locally in your browser.

How to use it without using it backward

The easiest way to misread this tool is "it's telling me to put in this much." It isn't. The logic runs the other way: you first commit to "the most I'll lose on this trade" and "I will stop out strictly," and only then does it compute the amount that matches that discipline. In other words, the premise is that you really will stop out. If you place the order but can't bring yourself to cut it and ride it down to a bigger loss, the whole calculation breaks, and the loss far exceeds the number it gave you.

A few points a beginner should especially watch

  • The looser the stop (the bigger the percentage), the smaller the suggested amount; the tighter the stop, the larger the amount allowed. It's the same loss cap doing the balancing.
  • If the figure exceeds your total capital, don't actually borrow or add leverage to make it up. That's a danger sign, meaning you should tighten the stop or lower the per-trade risk.
  • Start small on per-trade risk; 1% to 2% is a common conservative range. Set it low as a beginner for more margin of error.
  • This formula only covers a single trade. Open many at once and the total risk stacks up, so control your overall position separately.

One thing that has to be said

This tool only helps you size a single spot trade. It doesn't target any specific coin, and it's not telling you to go all in or trade often. The moment leverage or futures enter, losses get multiplied and liquidation can wipe you out or leave you owing money, and this tool does not apply to that at all. To get a systematic handle on risk, read on with the traps beginners hit most and you hold some crypto, now what. This tool is an educational demo, not investment advice, and crypto can cost you your entire stake.

This page contains a Binance referral (affiliate) link. If you sign up and trade through our link, we may earn a commission and you get a matching fee discount. We are an independent third-party information site, not the official Binance website. This tool demonstrates how to cap single-trade risk; it is not a buy or go-all-in signal, leverage multiplies losses, the content is not investment advice, and crypto can cost you your entire stake.